Amazon bestseller Patent design office use ergonomic active chair for height adjustable desk

Amazon bestseller Patent design office use ergonomic active chair for height adjustable desk
Ergonomic height adjustable wobble chair / stool
Item NO.: BL-EC-01
Function: Exercise waist
MOQ: 100 pcs
Height adjustable from 55 to 83 cm
Round/Trigon sharp cushion D:33cm
Black, Blue, Red 3 color cushion
3 side height adjustable button
Non-slip rubber bottom
Auto reset buttom, tumbler design
2017 New type