The line of GearWrench Dead Blow Hammers is made from professional grade polyurethane to resist cuts, splits and abrasions even in sub-zero temperatures. These hammers, available in 18-, 24-, 33-, 49- and 54-oz versions, provide the required control to work in restricted spaces and with easily-damaged surfaces. The hammers are resistant to gas, brake fluid, anti-freeze and other solvents found in the garage and shop. The line of hammers includes a shot-filled head, which helps to reduce rebound force from the striking surface, while the non-marring hammer face protects struck surfaces. According to the company, the ergonomic rubber handle offers improved grip and enhanced comfort.