Description: "Teeter Popper is a highly durable plastic balance board that helps to improve core strength, stability, leg strength, balance, coordination and gross-motor skills. Silicone suction cups on the bottom of the board make it more stable and make a popping sound as the child rocks back and forth on any smooth surface. Children can sit or stand to rock. The rocking motion can be soothing to children with stress or anxiety, and it can be a helpful way to get whole-body movement without having to go outside. Weight limit of 110 lbs. Board is 28"" long and 11.5"" wide. Note: Adult supervision required."