Fiskars IsoCore Sledge Hammer L 8 lb/36", length 914 mm, height 76 mm Ideal for demolition work like shattering concrete (demolition face) or driving stakes and wedges (driving face). Patented IsoCore™ Shock Control System absorbs strike shock and vibration to reduce the punishment your body takes, transferring 50% less shock and vibration than wood handles. Wedged demolition head concentrates force for up to 5X more destructive power than traditional designs and directs debris to the sides, not back at you. SoftGrip™ handle features a sculpted profile to fit the natural shape of your hand and a patent-pending strategic grip pattern with large dimples where fingers rest for maximum grip and small dimples where the palm rests to help prevent blisters.