8 lb, 36″ handle sledge hammer, isocore shock relief system, insolating collar that interrupts the path of vibration from the strike reducing the shock & punishment your body, s, wedged demolition head concentrates force for maximum destruction & directs debris to the sides, not back at you, extra large diameter driving head improves strike accuracy, 36″ ergonomically contoured handle fits the natural shape of your hand, bio dynamically engineered texture offers a secure grip, draws moisture away from your palm & helps prevent blisters, hooked handle keeps the tool in hand when swinging with maximum force, forged & heat treated steel & finished with rust resistant coating, tested to exceed iso 15601 standards for striking tool durability, full lifetime warranty.