Versatile inflatable cushion can be used while sitting, standing, or lying on the floor. It can be used while seated to release accumulated energy, improve concentration and promote a good sitting posture. Used while standing it enhances proprioceptive and balance skills. Smooth bumps on one side of the cushion provide a tactile experience and can help improve difficulties with tactile defensiveness. The other side has smaller, less-dense tactile receptors. Durable PVC construction. Small needle pump included.