Armstrong 68-524 24 -Ounce Dead Blow Ball Pein Hammer Made in the USA - quality and availability Steel shot filled canister creates a dead blow effect; sustains impact, maximizes force , reduces / eliminates rebound, and absorbs the shock of impact Hot cast urethane covers steel shot chamber and steel reinforced handle Steel face and pein allow for conventional use in striking punches and chisels as well as shaping and straightening unhardened metals Steel reinforced handle provides added strength and safety by resisting breaking on overstrike