MagiDeal Hopper Balance Pogo Jumping Exercise Bounce Space Fitness Ball-Blue Champion Sports Balance Platform Fitness Balls. Stand on the plastic platform and bounce up and down like on a pogo stick. The welcome return of something many of us remember hopping about on during the 80s, when it was sold under several names including Pogo Ball. The tough rubber ball is inflated within the platform that is then stood on to bounce, hop and jump about. Great fun as well as good exercise. Material: PVC plastic, Size: Board-38 x 27CM; Ball-16CM in Diameter, 23CM in Height.