The gas lift cylinder we use rises and falls every day & left and right rotation activity, the quality is very important.For a multifunctional chair with lifting function, the important function part is just the gas lift cylinder, and the important safety factor is also the quality of it.
If your chair or stool starts sinking, leaking gas or failing,SAVE MONEY by purchasing our gas cylinder as replacement instead of buying a whole chair or stool painfully!
Our products have passed SGS certification in the United States. The tube wall of inner core tube is made of thickened steel plate, with a warranty of 5 years. It has stability, explosion-proof safety and durability of high hardening special steel.

QA：
How to install a new gas lift cylinder? Is the old one hard to dismantle?
1. First step on the lower five-star foot base with your foot, then shake it vigorously to the left and right and lift it up. Repeat the operation for 5-6 times to remove the old gas lift cylinder.
2. If it is not finished, it can be removed by gently tapping the five-star foot base below and the chair chassis above with a hammer and other tools.
3. If it still can't be completed, use professional lubricating oil to the connection part of the gas lift cylinder, wait for about 10 minutes, repeat the first step, and then it can be easily removed.
4. Align the new one with the mounting hole of the foot base and insert it tightly.