The Fiskars Shock-Absorbing Hammer is designed to reduce by four times the shock and vibration that a wooden-handled hammer transfers to the body. The tool features a patented insulation sleeve that reportedly "captures" the initial strike shock before it reaches the hand, and a dual-insulted ergonomic handle that "dampens" lingering vibration. Other features include magnetic nail groove in the head for one-hand nail starting and sculptured, dimpled, Softgrip handle for comfort and control. (Three types are available-general use, finishing, and framing.)