Specifications:
Material: TPR
Size: diameter is 55mm/2.16inch (Approx.)
Package Included:
2 x water jumping balls
How to play:
1. Throw the ball to the surface
2. The ball bounces on the water
3. The companion has a quick grip on the ball
Just throw the ball on the water and it will jump to the surface without sinking into the water.
This is also good for young children trying to catch the ball.
Another way: hold it in your hand and squeeze it to train your finger for flexibility or reduce stress