AppleRound Jr. Inflatable Seat Cushion with Pump, 31cm/12in Diameter, Sensory Wiggle Seat for Kids

12in / 31cm in diameter for kids, small round dimples on one side for active sitting and even surface on the reverse side for increased comfort. One unit of hand pump included for easy adjustment of cushion firmness. | Suitable for children to use in kindergartens and elementary schools. Recommended for ages 3 to 13. | Good for active sitting, helps promote better posture, improve balance & coordination. Used as a wiggle seat to provide sensory input, it can effectively help kids stay focus. | Lab tested, conforms to the toy safety requirements, durable and safe. | How to adjust air pressure: Remove the inserted white plug (air stopper) from the seat edge first, insert the tip of the pump into the mouth to inflate, then replace the plug back quickly when seat reaches desired firmness level.