Wobble Stability Exercise/Physical Therapy Core Fitness Balance Disc Set of 2, Durable Kids Wiggle Cushion

Balance cushion provides an unstable surface to exercise on, requiring you to use more muscles to stay balanced.
Ergonomic seating, relieves back pain and shoulder aches.
Used as a wiggle seat to provide sensory input, and to help calm children that have a hard time sitting still.
Stability set includes 2 discs, includes a pump. Stability disc size: 13 inches / 33 cm diameter