The Ringside Hydroblast Water Heavy Bag will provide you with a giant wave of a workout. Unlike traditional heavy bags, water bags provide a unique, life-like punching experience while also saving wear and tear on your fists, wrists, elbows and shoulders. The bag is made of durable, even-walled rubber and will absorb anything you can throw at it. It is easily filled with water within minutes and can be hung by the included steel chain.