Product Overview
Encourage proper posture with this inflatable sitting disc. Can be inflated from 1" (2.5cm) to 2" (5cm) high for full firmness. Mimics the action of sitting on an inflatable ball but works on a regular chair! One side is nubby and the other is flat for a choice of tactile feedback. Measures 13 3/4" (34.9cm) in diameter.
