Groz 34519 Indestructible Handle Sledge Hammer with 12-Pound Head and 36-Inch Handle Indestructible Handle Made With Six Spring Steel Bars Which Run The Full Length of the Handle Steel Bars Lock With a Steel Plate On Top Of the Hammer Head Ensuring The Head Never Gets Dislodged Ergonomic Rubber Grip Handle Absorbs Vibration and Reduces User Fatigue 52 - 56 HRC Head is Especially Useful in Demolition Work Where the Struck Surface is Softer Than the Hammer Head Conventional Wooden Handles And Fiberglass Handles Fall Apart Not Just When Over-Striked But in a Few Hundred Strikes - Even When Used With Full Care