The Ogosport® OgoDisk Set offers unlimited possibilities for inventive and active play. Use to catch and throw the ball or as a flying disc. Introduce children to the skills required for numerous sports such as volleyball, baseball, tennis, or badminton. Play anywhere, inside or out, the discs are also waterproof and will float if used a pool. Bounce any ball -- for summer fun, try it in the pool with water balloons! Durable and easy to clean. EVA foam ring. Nylon-spandex membrane centre. What's in the set?. 2 x Ogo discs (29cm). 1 x Ogo ball (6.5cm). 1 x playing rules.