Drafting Rolling Stool Swivel Chair with Back Support, Adjustable Height Pneumatic Task Stool for Office Shop Spa Dental Kitchen Medical Computer Hairdresser with Wheels (Black)

I'm 6'8" and weigh 350. I use the stool in my woodshop at maximum height sometimes. It wants to tip and is unstable. It also slowly looses pressure and gets lower and lower. I have to keep re-adjusting the height.

Excellent quality. Well worth waiting for weeks. I’ll order Again!