Master Massage Berkeley Ergonomic Saddle Stool -Two Split Part Seat Stool Hydraulic Swivel Rolling Seat & Saddle Posture Correction Chair Seat with Backrest and Adjustable Title Angle and Height Royal Blue (2 Color Options)

Great for posture and comfort

This chair is comfortable and has been great for my back. There are four ways to adjust it, so it is truly customizable. Assembly is a breeze. but adjusting the height of the back cannot be done just by turning the knob by hand. You have to use a plumber's wrench to tighten it very hard so that it won't move.

Arrived damaged and have to return it since it wobbles side-to-side. Customer service extremely uncooperative and unresponsive. Would never buy from them again.

I bought to alleviate hip pain from sitting all day long but there’s next to no padding on the seat halves and I developed a new pain in the center of my pelvis much like the pain you get when you ride an uncomfortable bike seat. Don’t think I’ll get much use out of it. Regret buying it and since it came from the United States I won’t return it because that will be a whole different pain dealing with customs and shipping to California.