Review on Himimi Kneeling Chair Ergonomic For Office, Height Adjustable Stool With Thick Foam Cushions For Home And Office - Improve Posture To Relieve Neck & Back Pain, New Upgraded Pneumatic Pump by Julpikz Bellemy

This is a low cost option to the substantially more expensive "balans" chairs and it's a good choice if you want to test if this kind of chair is right for you. The downside is that low cost means lower quality with a couple of deep design defects which could have been solved for a few extra dollars. The adjustable gas shock is a nice add but frankly it's not needed.Wheels: The angle of the wheels changes with the height of the seat and this causes the front wheels to be angled so far that they do not caster properly when you're seated. You might call this a feature if you don't want the chair to move once you're seated. The wheels are small and don't seem likely to survive long under serious use, particularly the tiny brake levers.Cushion: Very thick and generously sized. Might be less comfortable for lighter or smaller users.Manufacturing issues: The hole size for the pin under the main seat was too small to fit without forcing due to improper size after the paint. All the pivot pins lack washers or bushings and the design lacks rigidity between the main structural components which means there's side-to-side wiggle when used. The tapped holes in the pins are not well formed and prone to cross threading.