DOZYANT Gas Lift Cylinder, Office Chair Cylinder Replacement,Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) Universal Size Fits Most Executive Chairs, Highest End Class 4

Bought it an year ago, still working fine. Slightly expensive than from local vendors but it shows in quality.

Heavy duty but slightly costly

It's ok,but I have returned this , quality ok, fit , stability not good assembly very nice stability ok, functionality ok

I got this product with already returned by other customer as its not working its push up function. I could check this after return period so now its impossible for me to return So I suggest other buyers to check it immediately after getting delivery. If seller is reading this kindly help it replace as its not moving up and you have delivery faulty product. I can see hammer hit at bottom of cylinder. And also movement not function clearly indicate product is faulty and return by other customer. Hope this helps other buyers.

Not a Good quality. Easy installation. Value for money. Recommend to all

450lbs = 250kg Who needs a chair at that weight? They need to change their lifestyle. Anyway, this doesn't extend to 15 inches. 10-11 inches, maybe, but not 15 inches.

Good . You can go for it

so far it’s good…… will review after 5 months about its reliability and durability

ممتاز وخامه ممتازة

Seems like a universal fitment. Worked perfectly for me. Measure your old gas cylinder and ensure its the same height. I removed the black case because my chair had a different design however the silver part was standard size and fits well. There's small parts inside the black cylinder so be careful not to loose anything

Fits well, make sure to measure the travel of old one as majority on here were actually shorter. Need hammer/mallet and a pipe wrench to remove old one. Simply mallet hit bottom to loosen from cylinder and years of sitting in chair, top chamber pipe wrench needed to spin about to loosen from chair. Then simply remove the new cap on the new cylinder and place in the feet and then top chair and sit on chair and move up and down a few times and then it’s like new

Worked like a charm

Little harder to adjust up and down because of the pressure of the cylinder, but, so far so good. Much cheaper than buying a new chair and took all but 10 minutes to install with a couple clothes and a small hammer to nudge the old one out of the chair seat. Ill update if it goes out within a year.