Stanley - 42 oz Dead Blow Hammer - 06622732 - MSC Industrial Supply
OEMTOOLS 25517 3 Piece Dead Blow Hammer Set, 1/2 Lb., 1 Lb., and 2 Lb., Non Marring Mallet, Automotive Hammer, Non-Slip Grip, Steel-Shot Filled for More Force - - Amazon.com
Trusty-Cook Sledge Dead Blow Hammer, 144 oz - eDarley.com
Capri Tools 32-oz Rounded Face Polyurethane Head Rubber Dead Blow Hammer in the Hammers department at Lowes.com