• Promoting body metabolism, the effects of this exercise are better than skipping and running, more interesting than skipping and running. • It has professional design, interesting and unique, very suitable for children' s entertainment. • The lightweight jumping ball swings freely without hurting the ankle, so you can play with your kids with confidence. • made of durable and safe material, and children can play for a long time. • Put your feet in the circle first, push the ball to the left, and start jumping, very fun.