A water bag hits differently from a packed one. As you strike, the water inside moves, absorbing the shock that usually travels back through your wrists and waist while still giving the resistance that builds power. This aqua bag measures 18 in across and 23 in tall and fills to as much as 110 lbs, so a beginner can start light and a serious striker can load it up, all with the same shell.The body is thickened Pvc chosen to take repeated punches and kicks without splitting, and the surface wipes down quickly at the end of a session. A 39 in metal chain adjusts the hanging height and lets the bag mount to a ceiling, a wall or a punching bag stand, so it fits a home garage, an office gym or a corner of a spare bedroom. High-quality hardware and a water injector come in the box for filling, and when the workout is over, drain it through the 39 in hose and the whole bag folds down to 11 lbs for storage or the trip to a friend's place.