Improves core strength & stability, balance, coordination and gross-motor skills. So easy to manoeuvre - stand, sit, rock, tilt, balance or wobble! Pleasant POPPING sound rewards movement. Unlimited ways to play. Silicone suction cups with a highly durable plastic body. Appeals to a wide range of ages. Dimensions (cm): 71 L x 29 W x 19 D, Weight limit: Approximately 50kg. Colours blue, pink or green only.