My chair for last 5-6 years. Forgot the name 😕 Adjustable height so you can “perch” or “lean”. Bottom is spherical(not perfectly) so you can wobble. Causes good posture via core balancing. Google it.

My chair for last 5-6 years. Forgot the name 😕 Adjustable height so you can “perch” or “lean”. Bottom is spherical(not perfectly) so you can wobble. Causes good posture via core balancing. Google it.

Ty!