The Grainger 14L071 is a 14 oz. dead blow plastic hammer with a 2-1/2 inch diameter striking face. It has a hollow head filled with steel and lead shot to prevent rebound and absorb shock. The handle is made of fiberglass reinforced nylon for durability. This hammer allows you to strike delicate surfaces like aluminum, plastic, or glass without damage. It is well-suited for automotive, industrial, and construction applications. The total length is 12 inches.