Material: PVC Diameter: about 25cm Maximum load: about 500kg Applicable scenes: sports trends, other ball sports Package List 1 pcs Balance Board You need to inflate by yourself 1,Rock hopper jumping ball balance board. 2, Simply inflate the tough rubber ball and balance on the platform to jump, bounce and hop about! 3, Endless fun provided, whether its racing each other in the garden, seeing how high you can bounce, performing tricks or anything you can think of. 4, It can promote childrenand 39 s bone development, increase blood circulation, inspire their sports talent. 5, A great way to get children playing outside whilst exercising at the same time. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.