Stanley’s Fatmax Anti-Vibe two-piece hammers are constructed of a two-piece steel core to isolate vibration to the hammer head. The 14-oz. Nailer Hammer features a smooth face and black exposed steel under the head, which provides over-strike protection. The steel core is wrapped in layers of multiple dampening materials and a shock-absorbing collar between the head and the handle.PM1014_Products_hand-tools_Stanley_14-oz-Fatmax-Hammer_300.jpg