Black Mountain Products Exercise Balance Stability Disc with Hand Pump: Made of heavy-duty material for home or gym use Each balance disc has massage spikes for comfort and maximum grip With each balance disc a hand pump is included for easy inflation Wobble discs help improve balance, coordination, flexibility and core strength Designed with a 13" diameter base, each stability disc has ample room for all types of exercises Includes manufacturer warranty

Black Mountain Products Exercise Balance Stability Disc with Hand Pump: Made of heavy-duty material for home or gym use Each balance disc has massage spikes for comfort and maximum grip With each balance disc a hand pump is included for easy inflation Wobble discs help improve balance, coordination, flexibility and core strength Designed with a 13" diameter base, each stability disc has ample room for all types of exercises Includes manufacturer warranty