



💍 Invisible comfort, visible confidence.
The Feramox Invisible Ring Size Adjuster is a discreet, high-quality TPU ring sizer that reduces ring size by 0.5 to 1 size. It fits ring widths from 1mm to 10mm, suitable for both men’s and women’s rings, including wide bands and big knuckles. The soft, non-toxic material ensures comfort without irritation, while the easy-to-use design allows for quick, tool-free adjustments. Perfect for anyone wanting a secure, invisible fit without permanent resizing.











| ASIN | B07C15P2F7 |
| Best Sellers Rank | 2,045 in Fashion ( See Top 100 in Fashion ) 16 in Ring Sizers |
| Brand | Feramox |
| Colour | 8 Easy-Clips |
| Customer Reviews | 4.0 4.0 out of 5 stars (40,454) |
| Date First Available | 15 April 2018 |
| Item Weight | 9.07 g |
| Material | Silicone |
| Model Number | FM01-JA-5 |
| Product Dimensions | 11.91 x 8.89 x 0.51 cm; 9.07 g |
C**S
No hassle fitting, clear plastic so no one can see
Plastic ring size adjusters are little clear loops you stick on your ring to make it fit tighter. Got a ring that’s a bit too loose? Just slide one of these babies on the back, and bam! No more wobbly ring. They’re clear, so no one can see them. They’re also cheap and easy to put on—no tools, no fuss. They don’t hurt, and you can still wash your hands without taking them off. Basically, if you don’t want your ring falling off but don’t want to resize it, these are an easy fix.
A**R
Comfortable and cut to size
My ring was half size too big, and I wanted to change up from the twist on adjusters (also from amazon) since it was uncomfortable and pinching my finger. Decided to try these that easier slip onto the ring and its so much more comfortable and you can't see the adjustor at all. I use the XS size and cut it in half (since original seemed to reduce it by 1 size down which was too tight for me). Worked well! Have also tried another amazon 'top rated' ring adjustor (the one with the curved grips) but that was way too big/tight when putting onto my XS ring, plus more suited for larger/men's rings where you need it to be at least 1 size down.
A**G
Amazing!
Can't tell if soft plastic or hard rubber, but either way, they work really nice, got them on 3 out of 4 rings, If you are actually looking for something there, then you will see it, however majority of people won't even notice. Another good thing about them because of the material they are made out of, it actually grips onto your skin, So when you wash your hands they don't slide off your finger.
A**R
Not that great
Only one of them fits the size of the band of my ring. It does help with the ring being a little big but it also moves around the band and sometimes ends up on the side of the ring instead of the bottom. Wouldn’t recommend.
M**A
Good temporary solution to a ring that is slightly too big
Really good solution for ring half to one size too big. Really only needed one of the pieces as none of the others fit properly which makes this quite an expensive purchase. Having said that better than getting the ring sized particularly as my fingers do swell in the heat.
S**N
Terrible
TERRIBLE! More like a christmas cracker gift. Not fit for purpose
A**S
Perfect. Invisible. Comfortable.
Really great product. I needed one for my ring that I got as a graduation gift. It’s something that I wanted to keep on all the time and never take off. This product allowed me to wear my ring and know that it’s not going anywhere. While they’re not the easiest to put on, when they are on, you just KNOW that it’s not going anywhere. I’ve been on nights out and just going about my day to day life and my ring has stayed put because of this product. It comes with a lot of different sizes for lots of different rings so you’re very likely to find one that will be right for your fit. I really can’t feel it either, it’s super comfortable and just feels like my normal ring without the ring sizer. My mom really wanted me to wear my ring to so when these arrived I sent her a video of how good it was - I’ve attached it, enjoy.
Z**A
Sensible
Sensible solution for rings that are about a half-size too large. Clear and comfortable, and they clasp on snugly to the ring without collecting too much gunk over time. Pleased with our purchase overall. My husband’s adjuster fit easily on his wedding band. For my stacked rings, I only needed to place one on the top band, which then secures the one(s) beneath it quite well, without tightness. Best value if you have various rings of different thickness that you want to adjust. Still, the downside to this item is that there are no multiples or replacements in the size you need, so if one gets damaged, or if you only need 2–3 from the set, that £10 price tag seems a bit excessive for mass-produced bits of nail clipping-sized plastic.
J**E
I bought this Invisible Ring Size Adjuster to help with my Oura Ring after it became too big once I lost weight, and it worked perfectly. The adjusters are easy to put on, comfortable to wear, and truly invisible once the ring is on your finger. I love that it comes with multiple sizes and thickness options so you can find the perfect fit. It keeps my ring secure all day without spinning or slipping, and it doesn’t irritate my skin at all. If you have a ring that suddenly became loose especially something expensive like an Oura Ring this is an affordable, simple solution that works exactly as promised. Highly recommend!
A**B
Après avoir essayer plusieurs, je confirme que ces réducteurs sont parfaits. Ils se clipsent et s'ajustent à votre anneau. Assez discrets par rapport aux autres Je recommande même pour ceux qui ont des petits doigts
S**E
Es un accesorios muy fácil de colocar para que deje de dar vueltas el anillo y se juste y lo mejor son de varios tamaños muy buena opción
T**A
⭐️⭐️⭐️⭐️⭐️ Simple solution that works perfectly. Ring fits comfortably now.
M**D
Very Useful
ترست بايلوت
منذ أسبوعين
منذ أسبوعين