About this item:
Balance disc can promote core stability, strengthens muscle tone, and improve balance and body posture. Used as a wiggle seat to provide sensory input, and to help calm children that have a hard time sitting still. Features a built-in handle so that it is easy to transport. Balance cushion provides an unstable surface to exercise on, requiring you to use more muscles to stay balanced. Ships inflated, includes a hand pump for adjustments. Stability disc size: 13 inches / 33 cm diameter