Jobri BetterPosture Ergonomic Active Balance Seat; F1462

Jobri BetterPosture Ergonomic Active Balance Seat Active Balance Seat has been designed with an adjustable wobble mechanism allowing user to utilize core muscles. Height adjustable from 20.5" to 27" Patented dynamic joint mechanism in this chair designed to have 360 degree wobble effect allowing user to use core muscles to maintain balance and posture. Replicates effect of sitting on a gymball. Wobble effect can be customized by user to a firm setting for less motion or loose setting with enhanced wobble. Three locking casters so chair will not slip out from under the user. Color: Black   Specification & Warranty: Item Weight:  19 lbs Dimensions (in inches): 27L x 24.5W x 24.5H   Item Number:SHF1462 NOTE:   This chair requires 3-5 Business Days handling time.