The Rival Boxing Aqua 12” Punching Bag has a unique shell design and water filling provides a sensation similar to making contact with the human body when striking it. You can finally get a full-body workout from a punching bag that absorbs punches and is easier on your joints. Traditional bags just can't complete. Perfectly designed for practicing "in-fighting" and vicious body punches. Balanced to withstand the hardest of body punches so you can practice long range power punching and short range "in-fighting" techniques. Perfect for bob and weaving under the bag. Designed for indoor and outdoor use for commercial gyms or home gyms. Durable and long lasting with no hard spots or settling. The unique tear drop shape allows the user to deliver powerful combinations including deep uppercuts. Your energy is absorbed into its internal housing, allowing you to train longer and harder with more powerful combinations. Now you can learn how to punch through an object instead of simply hitting its surface.