The innovative Wobble Chair allows one's knee's, hips and back to find comfortable and ever-changing positions, unlike regular chairs. Ideal for children with ADD or ADHD, it provides an outlet for restlessness and extra energy. Designed with a gently rounded bottom, kids don't have to sit still anymore! Details: Dark Grey Chair: 14" tall Base: 13.75" diameter Seat: 11" diameter PlasticFriction grips to easily assemble or disassemble For ages 6-8