Steel shot inside the head of these specially designed hammers eliminates post-strike rebound common with steel and other solid-head hammers. Controlling this rebound conserves the energy of each blow, redirecting it completely into the work piece. This means fewer blows are needed, reducing the chances of deforming the work piece. At the same time, the high-impact poly jackets that completely encase the heads and handles protect work surfaces. These jackets give a positive strike while preventing marring of softer metals like aluminum. The handles are finished with comfortable diamond tread pattern for a non-slip grip. And don"t worry, they are backed by the TEKTON quality guarantee. So, go ahead, Take It On.Set Includes:(1) 1 lb. Dead Blow Hammer (#3182)(1) 2 lb. Dead Blow Hammer (#3184)(1) 3 lb. Dead Blow Hammer (#3188)