Cover For Sitting/standing 35cm Vestibular Disk Cando(r) Vestibular DiscInflatable disc mimics both the movement and shape of the inflatable ball when used on any seatActs as a dynamic cushion to activate the major muscle groupsFor use on the floor as a standing disc for balance training, proprioception and strengthening of the lower extremitiesCan be deflated to 1″ thickness, or inflated to 2″ thickness13.8� diameterBlackColor: Black Listing and template services provided by inkFrog