The MonsterBell is designed to be weight loadable by adding shot, BB's, coins, sand or a combination of to bring the weight to your desired level. The 12" MonsterBell has a 3" handle and is loadable up to around 230lbs with sand. The empty weight is around 135 lbs. This pro style dumbbell makes a great dumbbell for the most serious strength athlete. The official bell used in the American Strongest Man Competition and the Arnold Amateur Strongman World Championships.