Double Hammer Lever Device- Two handles with oval Sledgehammer shape, telescoping weight plate loading design allowing the leverage to be changed by tightening/loosening the double set screws and extending or retracting the leverage of the weight. A simple, brutal, old school inspired tool that will hammer your wrists into getting stronger. Slim "The Hammerman" The king of hammer levering and awesomeness was known for levering 56 lbs in this fashion!! An insane amount of stress on the wrists.