Nupla 3-lb Rounded Face Head Fiberglass Dead Blow Hammer in the Hammers department at Lowes.com
Nupla Standard Power Drive Hammer | Curtis - Tools for Heroes
Wright Tool 9060 8 lb. Double Face Sledge Hammers
Nupla 2 lb. Power Drive Dead Blow Hammer with 13.75 inch Fiberglass Handle, 1 Steel Face, and Super-Grip - Perfect for Mechanics, Contractors, and Trade Professionals - - Amazon.com
NUPLA 21548 Ball Peen Hammer with Ergo Power Handle - 48 oz. - Diamond Tool