Fiskars IsoCore 16 oz Rip Claw Finishing Hammer, 13.5 Inch Ideal for driving small nails into visible surfaces without damaging the surrounding area Patented IsoCore Shock Control System absorbs strike shock and vibration to reduce the punishment your body takes, transferring 4X less shock and vibration than wood handles Insulation sleeve captures initial strike shock before it can reach your hand Dual-layer handle features a specially formulated combination of insulating materials to dampen lingering vibration Lifetime warranty