Neiko Pro Heavy-Duty 9 Pound Dead Blow Hammer, 30-inch Length Dead Blow Hammer 9 LB Polyurethane Coating is Resistant to Many Chemical Environments Internal Steel Canister Features a Free-Flowing Steel Shot Design that Improves Dead Blow Action While Reducing Rebound High-Grade Polyurethane In One Piece Construction Using Bonding Process And Oven Curing