Sledge hammer bracket: Designed for use with 2 pound to 16 pound Double Face sledges and 1 pound to 3 pound Dead Blow hammers. Bracket is 2-3/4" H x 3" D - expandable from 5-1/4" to 8-3/4" W to fit various sized tools. Stainless steel for years of service. Third party tested to 10G to meet NFPA 1901-09 Standard.