Minewill Fix Sinking Office Chair-Chair Saver Kit (Stainless Steel Shaft,Wrench and nut)，Office Chair Gas Lift Cylinder Holder,Saver for Stop Sinking Without Cylinder Replacement, No Tools Required

Started to have a sinking chair but the rest of the chair was in great shape.I added this to the piston and after a few adjustments I have it set where I need it. A great low cost solution instead of having to buy a new chair.

I bought this to fix the hydraulic shaft on my office chair as Ive only had it for about 2 years now. It started out as a gradual sinking and then it became more prevalent. After seeing this item I figured it would be far easier to try this than to find a hydraulic shaft that would fit my office chair both at the top going into the tilting mechanism of the chair and the bottom piece going into the legs. Its very simple to put onto your chair. You simply raise the chair to the height you want and then you bolt this piece onto the shaft and torque the screws down. My chair hasnt sunk since I put it on in December.

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The device does stop the chair from sinking. However, it is no longer adjustable so you have to install it at the height of the chair you use most office. I would purchase it again.

I'm a big guy @ 275lbs. I bought an Emerge gaming chair in January and by July it had started to sink on an ever increasing basis. I was forever pulling the handle to lift the seat. I got a replacement gas cylinder but couldn't remove the old one so I stumbled across this gadget and installed it a week ago and tightened the screws as much as humanly possible. So far it has held seat in position.Another reviewer claimed that metal on metal wouldn't hold. Not true! If that were the case then railway locomotives would never work as they rely on metal-to-metal friction even when wheels and tracks are smooth due to wear!The key to getting this gadget to work is to tighten the bolts as far as they will go and then some (tap the Allen key with a mallet or hammer)Update #1: still holding after two weeks. My 275lb body sits on the chair 8 hours a day!Update #2: still holding after six weeks with 8 hours a day use!Update #3: still holding after two months with 8 hours a day use!Update #4: still holding after over four months with 8 hours a day use!Update #5: still holding firm after over a year! No adjustments have been necessary. My 250lb body sits on the chair 8 hours a day! $15 well spent.I think that anyone who claims this thing doesn't work and their chair keeps sinking has not installed it properly. The bolts (2) need to be tightened as far as they will go (and then a bit more!) Also there is NO WAY it can "pop off and fall the floor" as it has two hefty bolts holding in place!

Horrible doesn't work it just slides back up the pipe even when u tighten it as much as u can it doesn't properly bite into the metal making this thing completely and udderly useless

My office chair developed a leak in its hydraulic cylinder. My first thought was to purchase a replacement cylinder. The videos about installing replacement cylinders make it look so easy. It's not. You will never get the old cylinder out of the chair, at least not without damaging the chair and getting fluid everywhere. Instead, just get this. It's well made, fit perfectly, and prevents the chair from sinking. Other than the chair height will be permanently fixed, it has virtually no impact on the chair. You can still rotate and swivel the chair normally. The only difference is that when you first sit down, the hydraulic cylinder is prevented from compressing a little, and the chair feels firmer.I should point out this is a product for a chair that will be used by one person only. After installation, you will not be able to adjust the chair height. You can set this product to any chair height you like, but once set, it is no longer adjustable. So, if you have chairs that are used by multiple people and need to be adjusted for each user, and the hydraulic post starts to leak, you will need to get a new chair.

Worked On My Chair!