Sitting, bouncing, rocking, or lying on the sensory ball provides an outlet for excess energy while alleviating anxiety, stress, and boredom. Hundreds of soft pliable comforting nubs on one half and anti-slip circular ridges on the other offer a choice for just the right amount of tactile stimulation. Rolling the ball over the back, shoulders, stomach, and legs provides a deep-pressure massage, quieting, relaxing, and releasing tension. Soothing comforting effect is ideal for increasing concentration in the classroom or at home. Improves children's balance, stability, coordination and stimulates brain development. Benefits all kids including those with ADHD, autism, and sensory processing disorder. Made of an anti-burst and slip-resistant material, the chair ball is made for years of use. Includes an air pump, two stoppers, a stopper remover.