iHuniu Dual Spring Power Twister Bar Chest Resistance Arm Builder for Strengthening Weight Training (20kg to 120kg Options)

THIS IS A VERY LONG READ FOR THOSE THAT ARE EASILY DISCOURAGED AND/OR SIMPLY CANNOT AFFORD TO WASTE MONEYI have purchased the following kg levels: 20, 40, 60, 80 and 100.This wasn't due to some dramatic increase in ability from 20-100 -- just a specific use for each resistance level.I'll explain my experience w/ these as I too was concerned about getting the wrong one and wasting $, though first let me add some advice in regards to safety. It's awful to waste your money and/or get injured while trying to improve.- Even if you're a bodybuilder, start w/ something lighter as you may underestimate the way it will fight back/bend throughout the movement and may give you a nice cobra strike into your eye socket. it's a very bizarre movement even when stabilized (especially as it wears in a bit). Even if you can bench 500, dumbell curl 100 for reps, etc.. this device will terrorize your small muscles/tendons/ligaments if it slips/fights back. Think of doing a bench press w/ your eyes closed/headphones on (have no idea someone is in the room) and as you're pushing up ... someone behind you suddenly pushes the bar forward and and you suddenly find yourself w/ no time react other than on instinct and you end up trying to save yourself w/ muscles/joints that aren't capable of handling that angle/range. --- then pretend the bar is flexible and can snap/swing around in an unpredictable manner. Quite dangerous! Starting lighter will strengthen the supporting muscles and get you familiar w/ the variety of unexpected angles this can throw at you (add sweat/slippage/possible handle twist, etc)- Keep your hands inside the wraps - don't get cocky. Even if you can do a 100 rep warmup w/ the level you choose.. one lapse of concentration at the wrong time and say hello to a blasted voicebox.- Wrap the handles in something like hockey tape and/or a bike tube (some alien strength glue for piece of mind would be nice as well)- Even if you find a level a bit easy, stick w/ it for a long time as the cumulative damage it can do to your joints/smaller muscles can cause a very unexpected injury w/ one wrong move. Thin of a serpentine belt in a car - though pretend it has several that are of varying sizes/strengths. You think you're fine because your car is running... till blammo! Then... you look under the hood and find the tiniest one has snapped and the rest are frayed and ready to go soon. it really creeps up on you.- I've known many people that have used these for particular functional sport movements (along w/ injury rehab deals) and the level of strength w/in even the sections of movements varies tremendously. One may not be able to get the bend started though can close it 20x w/ some assistance (example - over knee) for the first few inches, yet another may be able to bend the first 1/3 of the movement 20x but cannot close it while some can do the full movement no problem but find theres a link in their body chain that just does not agree it (wrist/elbow/cuff/bicep/delt and yes, even rib) - it may even make your bones feel like they have dozens of stress fractures for a few weeks. If you have a fussy injury from your past, don't feel like a weasel for skipping a part of the motion as you can still get a ton of benefit from it.- You'll need more rest in between sessions (even after you get used to it) than your standard compound barbell movements (for the most part) as the control of the spring puts so much tension on the supporting joints that the cumulative damage will get ya.COMMON CONCERN: How do I know which one to buy if I can only get one?* 1. Test out the movement on something similar* 2. Compare someone relative weights/ranges/bodytypes1. To test out the initial movement, hold a broom stick as you would hold this device and ... try to snap it (use a thick one or a pole if you're a beast -- why get a splinter/stab yourself, etc) Put a ton of effort into this and see how it feels on different joints/muscles) Vary the width of yoru grip as well a the placement of your hands/fingers (go over the top more (knuckles down), pull back a bit (knuckles up) and thing of that nature. This is how many people feel when they first get the device as that's about all they can do w/ it if they purchase the wrong one. Now image you can bend it a little bit and it's an actually spring that twists and fights back and will snap back at you if you lose your grip (slip right out of the weak spot of your grip). Do the same movement w/ palms underneath, etc. Then.. grab a hose while it's one and start bending it in a variety of angles and keep in mind that won't be like the 20kg - more like a 5. Find the weakest grip/range you have while doing that and image it's double the force of the post/stick you were trying to bend and it snapped back at you. *** NOTE: if you find out that the level you purchased is more like the fence post experience... don't be discouraged as you may be closer to bending it than you think - you may only need to get the wrist/grip/elbow motion a little stronger (though still - you'll be unprepared at too great of a weight to know how to handle how it shifts once the bend starts - which is really why I would recommend always starting w/ the 20kg even if you're very strong -- if anything, it's fantastic for working bizarre muscles that help w/ sports in a supporting function (those odd unexpected movements that tend to get you injured) and it's greats for warmup/practice. You may find the bar too short and it puts your wrist at a lousy angle (especially if you have long arms/big hands) and it just might feel uncomfortable... simply change the angle. After using this every other day for a month you'll have a good idea of how to do it/how it changes over time/how your body heals, etc. - then get one how many ever levels up you think you might need (just keep in mind that each level up is a lot more than it seems (its not like changing your dumbell press from 20 to 30 ... it'll feel more like going from 20-50 as the supporting muscles/ligs/tendons feel it/give out first.2. What body type/fitness level are you at? (overblown lightweight athlete, underdeveloped w/ large frame/horse joints, etc) You may be able to do curls at sets of 12 w/ 80lb dumbells yet your wrist may not take say... the 80kg w/ an overhand grip and you'll end up w/ diminishing returns just as someone that may do 12 w/ 40lb dumbells may have Yeti wrists that find the initial bend harmless -- though may find problems w/ the twist/close and/or no twist and have it feel as if their elbow will pop out of socket.WHAT DO I USE THE VARIOUS RESISTANCE LEVELS FOR AND HOW DOES IT FEEL?- * This is handy for anyone that may have purchased the wrong one and may wish to see a baseline experience from someone that has tried them from top to bottom (obviously not the same body type/levels, etc.. but it's a helpful baseline that I've found most people will be able to not completely screw themselves w/ if they follow it loosely)20KG - I use this for warmups and doing all sorts of crazy angles for a general limber up/supporting tissue support. My hands/wrists will give out before I would come close to losing my ability to close it - it's not really meant for hitting anything beefy. I don't bother counting as it's not about progress in reps at all - just to keep lose and keep my joints used to certain movements. After a few months I didn't get any weird pains in places that I didn't know existed anymore. This one wears out quickly but it's still darn useful ( i know that the lack of soreness isn't just from that as i've used varying levels over the past year). This is one of those ones that I just do for anything between 50-250 reps depending on the day/angle w/out maxing out as it makes my wrists feel lousy as it's a very short bar and it's an awkward angle and I generally don't have any interests in doing something beyond that anymore.40KG - I like to go down (overgrip/thumb below) w/ this one w/ a twist grip (varying from hands up high to below the belt (varying moving the handles away from me to closing them close to my stomach (for example))Though is is a mere KG more, it feels 5x stronger. After 50 my wrists start to warn me that I have to be careful w/ my focus/grip. I've never tried more than 75 as I don't feel confident w/ the grip after that -- though I doubt I could get 100 before my wrists gave out if I actually attempted a max - though my arms/chest could probably take significantly more.60KG - I don't use this one at all anymore as the narrow grip/resistance combo aggravates my wrist too much - though I'll keep it and put pipe on the end of it someday for some wide grip angled stuff. The initial start feels 3x tougher but the close feels roughly double. The major difference w/ this one (tried overhand/underhand grip) is how it feels on the joints/tiny tissues (it's a body warning feeling) though this level starts to hit the beef more on the close. My wrist/elbow(even my cuff) start to warn me after 25 reps w/ this one when using an overhand grip. This one feels too screwy in the wrists w/ an underhand so I haven't bothered to try more than 10 before knowing it just wasn't worth it. Listen to you body.80KG - This one is my favorite and the one I have used the most. I mostly use an underhand grip w/ this one w/ an occasional overhand mixed in w/ an even less frequent behind the neck position. I actually find this one easier after the first few inches as just the little extra length puts my wrists in a better position and I can actually use it w/as much pain. I lose confidence in my grip past 12 reps overhand and 30 reps underhand so I don't try more though I know the 'beef' is capable - just not the supporting tissues (safely). Also, just as another example of how this can vary from person to person (and gauge yourself w/in a loose range) - a co-worker can do around 30 reps max w/ it using an overhand grip but cannot close it w/ an underhand grip (even putting the bar under a pole for support - can only get a few inches)100kg - Just got it and have only used it twice. I can't do one single rep w/ an overhand (and i'm never going to try, even if I feel i'd be capable - I know thats the limit that my frame will allow before being too dangerous for small tissues)I was able to do 2 reps w/ the underhand and did not feel safe trying more (though I don't think I could get more than 5 anyway). This level is where my wrists/elbow/cuff will not happily support the motion anymore and my pinky/index finger don't appreciate the pressure. I'll probably never try more than a dozen as it just doesn't seem like a good idea until it's worn out more but by then it might just feel like a brand new 80 - (I feel safe doing a dozen w/ a pole for support - goal for 30 if my body is even capable) who knows what the max would be w/in a year and it's not important enough for me to take the risk and test that out. There are several other bend/angles aside from the common 2 that I can use this for (and will) that are safer and handy/convenient on business trips (which was the ultimate reason for the purchase) though I know I'll never go higher.So if you're someone who has never been to a gym/played sports and simply bought a convenient way to exercise on the road or watching TV and found yourself stuck at a 60kg w/ out a budge - you can have an idea where to go by what I have written though not exactly (of course). There's nothing wrong w/ a 20kg warmup to 30kg tone/strength quickie and max out at 40kg if that's all you care to do.DURABILITY AND WEAR AND TEARThe handles are pretty bad otherwise i'd have given this 5 stars (not in general, but for the price). I've had the handles slip/turn and cause me to lose my grip before which is why I bought glue/tape/tubes.20kg - this became much weaker after about 500 reps I'd say. It has stayed the same after that as far as I can tell just be a neighbor using it once in a while (same goes for the others I'll detail next) It's still fine for what I use it for though if I had to guess I'd say it'll be useless in a year. I've had it for about a year and it's something I use maybe once a week for high reps. If you're just going to use it for an injury rehab type of exercise at 25 reps/few times a week I'm sure you'll have it for years if you don't get one that's a bit flawed.40kg - I've had this for about a year as well and use it about 3x a month and usually just do 50 to keep loose - it's not something I max w/. At that rate it has weakened considerably as far as the first 5 inches of the bend go (and that may not be a concern (actually may prefer the slack to just hit the chest) After the first 5 inches ti's weakened a little, but not too much. The same neighbor can do 1 good rep w/ it but couldn't get one when I first got it... so it's held up pretty well.60KG - This one has surely been used less than 100 reps though it's like brand new still (the only one that didn't bow even a little bit after 25 reps) This one came out fantastic which is why it's disappointing I dislike the length/resistance combination yet I must keep and use w/ an extension.80kg - The first few inches give you slack and ease on the wrist pretty much after 50 bends and the rest of the bend is still close to what it was when I got it. I use this one once a week for 15-50 depending on how I feel or what I'm doing w/ it so it hasn't been through hell and back. The fact that it bowed so quickly may turn off those that want it more for grip/wrist/twist purposes yet be ideal for those that want to focus on an iso.100kg - After a mere 4 reps it has a .75 inch bow. I for one am glad as this is perfect for a few angles that hit bigger groups and the first few inches of the bend on the undergrip made it feel like my wrist was going to separate. I welcome the slack and now understand much much more why another company used to sell models w/ slack.BODY TYPE/GENERAL STRENGTH TO COMPARE W/ WHAT I'VE DONEBack in the day I was about the size of an overblown Free Safety that moved to Strong Safety to continue his career - not Linebacker/Lineman sized... so there's only so much my frame can take.I would suggest that if you're (let's stay w/ football) the frame size of a small kick/punt returner (not speaking of NFL ability/shape here... just an overall average of standard humans in regards to bone/tendon/ligament size/durability) that your joints/tissues wouldn't appreciate more than 50kg if used on a regular basis. if you're a Cornerback on the thin side - 60kg, Strong Safety 80k, Linebacker - 100kg, Lineman - could probably use this every day while watching TV and be fine as long as you're careful w/ your movements - and perhaps get the super twister from another company - I believe they're called Python Grip (not the same as the Python found on Amazon). If you're on that is in the range of being 125 if you're 5'8 and below... and around 125 when you're cut... then the 40kg should be safe for regular use. 30kg would be more for elderly w/ injury limitations and 20kg for a grade school boy that is maybe working on his throwing arm. I'm not speaking in terms of a start level device w/ the above - but more of a safe max/amount of use in a safe manner. ON AVERAGE.... if you're 5'3, 100 lbs and have never exercised before ... don't get the 100kg. Get the 20kg and move to 30kg and keep it for months to see if your joints can handle it. 6'5, 250 and never excercised? Get the 50kg and work to 100kg, etc..This was very long but I've been around a ton of athletes/average joes/injured, etc.. that just want something to use for convenient workouts at a good price while not getting injured. Who wants to waste money and become discouraged and/or injured?Last (again) - BE CAREFUL! You can seriously screw yourself up w/ these as well as the person standing near you if it slips (or your new TV/Whatever). Watch some youtube videos on this as well and note the body types (and keep a keen eye on the springs (ignore the video if the spring wobbles even a little as it could be overused from a different exercise that what they're showing you). Don't look at muscles, but joints - very important w/ this thing..

I read the reviews of the formidable 80kg model and had to order it. I've been using power twisters in my training for the past 15 years. This is my third power twister, but my first from this manufacturer and obviously the hardest one over the years. Look, power twisters are not some exotic piece of exercise equipment, so don't expect imported cow hide handles. The quality of this one was excellent. The shipper did an excellent job shipping (fast!)and the product was as described and was very well made. The power twister is manufactured by POVIT. I own the POVIT spring chest expander as well and I love that thing (I did a review there as well). I'm starting to believe POVIT in another language means "I beat you!"It came shipped to my house right within 3-4 days. I received it from UPS right after I worked out my upper body. I took it out of the box and could barely move it. Not one rep. You might as well of handed me a piece of 2" rebar and had yelled at me "bend it, bend it, bend it!". Nope was not happening that day, but hey, I just did a very hard upper body workout. I wasn't too worried, as I knew I was pretty much spent from my workout. But, I did read the reviews again and schemed to purchase a lesser weighted version the next month to build up to it if I had to. So, I went to bed and rested. I watched some videos on the twister and saw some really bad form from those bending it and compromising form to do so, which could lead to very serious injuries. Look if you can bend this this handle to handle, you are strong, and even with horrible form strong still, but one is really asking for a condition known as tennis elbow and or an internal rotation rotator cuff issue trying to prove something.The next day I woke up and went to work and came home on my lunch break and tried the dreaded beast again. This time I put on work gloves to get a better grip. I fired off seven full range reps, no drama, no whipping my arms up and down, just a gentle pull right in front of my chest. The first rep was the hardest as I broke in the spring. A few minutes later I performed another 7 reps, all handle to handle.The next day I performed two ten rep sets. I do believe once this twister's cherry is broken it gets easier. As, no way I got 20-30% stronger in a few hours! Hello science! After 5 days I could rep this thing for 20 reps. Remember as with all exercisers that use springs, low temperatures effect the tension and get stronger as temperatures decline.So being all cocky and stuff, I brought this to work! Why not? No one could come close to closing or bending it with form or any thing that could possibly be considered a form (the poor old Police SWAT team got beat by a garage door spring with two handles welded to it). They tried and the spring won. So despite my wear in theory the device is still quite difficult to close to even those that boast being gym rats. It was so much fun watching them try.Look, if I wanted an old school spring chest bender I'd buy this brand as they have some sort of value assigned to each bar. I've purchase much more promised products with less than mediocre results. This product delivers. I am 6'4"s 270#s for the record. Even as I can bend the 80kg model for 20, I'm still considering buying the 60kg model to accomplish even more reps.The other twisters I generally do 50+ reps with. Trust me, I've been a Bullworker, chest expander, and power twister user for years. Read my words, spring tension is much different from free weights. Springs work your tendons and ligaments much more than machines or free weights. Springs do not care about much about inertia or your teeth if you let a handle go. Use the safety wrist straps and pull the handles together slowly with control to gain strength.If you are used to power twisters and need the next level, do it! I just hope they offer a 100+kg verion soon!

Está muy bien construido y es pesado, pensé que sería de mala calidad por ser chino pero me sorprendió. Para que tengan una idea pedí el de 50kg. Hago ejercicio con regularidad con un par de meses de descanso al año, aguanto pull-ups con mi propio peso y no lo pude doblar. Pero está bien. Me servirá de recordatorio y presión de que tengo que entrenar con más empeño.

The media could not be loaded.  Ihuniu 120 kg feels twice as hard as Ihuniu 100 kg. Extremely hard start! The spring stays almost straight under a 32 kg kettlebell attached to the center and left hanging. This is a very hard power twister for the strongest athletes that specialize in power twister bending, or very gifted individuals that have world-class chest crush, wrist, and shoulder strength. For 99% of people, it will be an immovable bar.I bought this power twister for braced bending which is bending with help of some objects or body parts. I managed to do 6 reps underhand with a rope attached to the floor. Over the neck, my best result is 12 reps. I also managed to statically hold it by the spring grip overhand and pushed it as far as I could using by the spring grip over my neck. I successfully closed it underhand using the hip-to-chest method.Don't be fooled it is not as easy as it may look. I have years of practice with power twisters of different brands and a wide difficulty range. Even if you do 30+ reps with Ihuniu 100 kg this twister will be very hard for you, and you would need a rope, extra weight attached to the spring, or resistance bands to be able to bend it and progress.Which muscles does it train? From my experience, wrists and shoulders get the main stress and they are the most susceptible to injury, so warm up these parts well and use protection (wrists wraps, elbow sleeves, etc). Also, the stabilizing muscles and tendons are greatly involved in the bending process.Here are the technical characteristics of Ihuniu 120 kg:- Total length: 71.5 cm- Spring length: 39.5 cm- Handle length: 10.7 cm- Spring wire diameter: 9.4 mm- Number of coils: 41- Coil diameter: 46.6 mm- Total weight: 3040 gThe spring is made from high-quality German steel, which ensures that there will be no deformation or slack in the spring even after thousands of bending.

I weigh 90 kg and bench press 60 kg so thought i could handle the so called 40 kg power twister for beginners, in fact with arms stretched out i couldn't bend it only with it close into my stomach i could bend it under strain which is pointless..The 30 kg power twister in my opinion is the one for beginners and people who use weights also, unless your a beef cake who walks sideways through doorways.I ordered the 30 kg one and kept the 40 kg version for another day..Its true the spring takes a couple of days to loose its stiffness and it becomes easier to get it to bend but believe me with arms fully stretched outward its still not easy, if your not sure go for the 30 kg option its not lightweight as they suggest.You want to be able to do at least 10 reps at a time and you should get there fairly quickly with the 30 kg after all its not an exercise if you stuggle doing two because its too hard.I dont know how effective it is at building muscle i will use it in addition to weights but check out youtube there is a couple of decent videos and some stupid ones from China.The build quality looks good its probably worth the little extra money compared to the black ones on here.

Servizio Amazon puntuale e impeccabile.Il prodotto è di ottima qualità, una qualità spartana, oserei dire!Io ho scelto il Power Twister da 60 kg e, dopo aver aperto la confezione, mi sono reso conto di aver sopravvalutato la mia forza: praticamente non riuscivo a piegarlo di un centimetro, né verso l'alto, né verso il basso. Incredibile! Nonostante io non sia esattamente un novellino, questo attrezzo era talmente tosto da sembrare una "spada nella roccia", o un "arco di Ulisse" o "il martello di Thor".Però non mi sono arreso e così, dopo vari tentativi (e vari giorni) aiutandomi con vari "trucchi" (tutti leali, tengo a sottolineare) sono riuscito a piegarlo. Riesco a fare pochissime ripetizioni, è vero, però ogni volta, quando finisco la sessione, i muscoli delle braccia sono sempre indolenziti, segno che l'attrezzo funziona e i progressi ci sono, seppur lenti. Sapete non sono più giovanissimo!!!Pertanto mi permetto di consigliare di partire da 40 kg al massimo, a meno che non siate già estremamente forti.Un'ultima raccomandazione: accertatevi di stare sempre ad una certa distanza di sicurezza da altre persone in un ambiente tranquillo, utilizzate sempre le cinghie di sicurezza e tenete sempre le mani ben chiuse e strette attorno alle impugnature, perché se dovesse scivolarvi dalle mani, sarebbero dolori! NON È UN GIOCATTOLO!

Bought this as an emergency home bit of gym equipment in case I have to isolate For 14 days during the Corona Virus epidemic. Wanted something that wasn’t going to take up much space but still give me some kind of workout.Happy with this, biggest issue was determining from the reviews which was the right size to go for as there was no way to judge what level of strength and fitness these reviewers were at, so in my case added a couple of pics in the hope it might help.I’m 52, daily lift weights, bench press 90kgs, I opted for the 60kg which I think was the right choice in that I can bend it but it’s a powerful level of resistance and gives me plenty to work on and improve.I think for me the 30kgs would have been far too easy and the 100kgs at the moment too hard but something I can work my way up to.