Bios Comfort Disc

Add total comfort to any chair. Helps prevent fatigue and promotes proper spine alignment. Improves posture and flexibility. Large 13" (33 cm) diameter. Choice of 2 reversible textures. Use seated to give you the benefits similar to a gymball. Use standing to increase balance and muscular resistance while doing exercises. Use lying down to improve strength and core stabilization for floor exercises. Vary inflation to change degree of difficulty.