Body Sport Balance Disc.
Inflatable disc is similar in movement and shape to a fitness ball when used on any seat.
Can be used as a dynamic cushion to activate major muscle groups, or as a standing disc for balance training and lower extremity strengthening.
Features one tactile side and one smooth side.
Inflates with a standard pump.
Can be deflated to 1" thickness, or inflated to 2" thickness.
13.8" (35-cm) diameter.