18" to 28" Long Adjustable Gas Lift Cylinder Tube for Bar Stool Drafting Chair Replacement Parts,Heavy Duty Hydraulic Pneumatic Cylinder Shock Piston (10" Lift Stroke)

The product works as advertised.The product's height is perfect.

Good 👍

I bought a new chair that was high but not high enough . This made my new chair perfect. I have a standing desk amd this makes it perfect height and it hold my Fat self good too

I love how high this goes to change my office chair into a drafting chair, and the quality is good. However, I didn't measure the height of the little button that releases the cylinder so you can adjust the height. The button on this cylinder is way bigger than my original chair, so no matter how I adjusted it I would sink. I ended up putting a few washers on it so the button didn't get pushed as easy. Measure your button!

This gas shock worked great. Now my chair doesn't sink to the floor. It was fairly easy to install and comes up taller then the old one. Thank you so much for the fast service. I love the stuff I get from amazon.Linda Ringler

Work great, very heavy duty. Much better than the original.

If you haven't changed one of these before, search the web for a video. I bought this for a counter height bar stool. The old cylinder would drift down and wouldn't hold the seat elevated. The new tall cylinder I'm reviewing is the right height.Taking the old one off:Removing the part that attaches to the seat involved twisting the wheeled base while holding the chair-back stationary. It came free fairly easily. That left the rest of the cylinder stubbing out of the still-attached wheel section. That didn't come apart so easy. For thirty minutes I beat it with a mallet, twisted it with a pipe wrench, and nothing. I then set the wheel base upside down loosely in a steel vise. I used a heat gun to circle around the base collar holding the cylinder for about ten minutes. (A hand held torch would have also worked, but the heat gun didn't risk discoloring the steel or melting any plastic.) Once it was too hot to touch I gave it a hard whack with the mallet and it came free at once.Putting the new one on: (easy peesy)I slipped the big end in the base as far as it would go. It went right in about three fourths of the way. I then set the chair on the upward portion of the cylinder. This went easy. The only thing left was to sit in the chair to push the bottom of the cylinder into the wheel base. I had already oiled it around the base and with my big butt sitting in the chair and wiggling, the cylinder slid all the way home.The garage sale stool now works as well as it did, or perhaps better than it did, new. The price of this cylinder was all it took to avoid buying a new stool. I couldn't be happier.

This has stopped working after a little over 1 month. Unfortunately, it is 1 week past the return window, so it's too late for a refund