How about some kickboxing for the kids instead of climbing and all the usual stuff? This Vinyl Punching Bag from Child Works is specifically made for that purpose. The bag is 8-inches in diameter and 30-inches in length. The punching bag from Child Works is made from vinyl, which means it is soft enough to not cause harm to the tender hands of the kids. Even with the soft cover, the bag is tough enough to present a challenge to the kids. Get this for your playground and let the kids sweat it out while they practice their punches on this one. The Vinyl Punching Bag is a cool way to get rid of their excess energy.