Bouncing on the big Jumper is one of the most popular activities of the playground.  The children will be highly attracted to the immediate response of the Jumper to their movements and jump repeatedly. This bigger Jumper works for more children and stimulates cooperative play. Children train important motor skills such as balance, proprioception and rhythm: they need to be aware of others and time movements to increase the bounce back. When jumping up and down, the big muscle groups get trained: Legs and core need to work to stay upright when jumping. Jumping on and off the Jumper additionally builds bone density. To build strong bones for life, children should take as much weight bearing activity as they can. There are few ways funnier than the responsive, inclusive, social Jumper.