Aqua Training Punch Bag 18" Aqua punch bags harness all of the power and benefits of water to provide you with a one-of-a-kind boxing or MMA experience. Aqua punch bags utilize water's force for a distinctive boxing or MMA encounter. Gentle on joints, they provide increased resistance and a realistic sensation. Once experienced, traditional heavy bags may become obsolete. Compact yet roomy, they accommodate diverse strikes.Crafted by a reputable US manufacturer, they boast exceptional durability to withstand vigorous combinations. Complete with a 6-month manufacturer warranty. 12lbs unfilled, 120lbs filled Hanging Kit Sold Separately Includes shackle, and a hose attachment. A unique new valve system that allows you to pump up once filled Comes with a 6-month manufacturer warranty. Upon receiving, first, hang your Aqua Bag in place, then fill it with water via hose and hose attachment. Otherwise, it can be a bit heavy for one person to lift. If your Aqua Bag feels too hard, let some water out and if it feels too soft, add more water in.