PURPLE STAR HAMMER CO. 12-Inch Rubber Mallet Hammer with 4 Interchangeable Heads - Brass, Steel, Nylon, Plastic Multi-head mallet - 4 heads - steel, nylon, soft plastic and brass Each is interchangeable by screwing on and off the heads - very simple to use Each head has a diameter of 1.5 inches - overall hammer length is 12 inches Great for flattening - use with metal - avoids scratches - for driving in nails Comfortable rubber grip that has grooves for grip - ergonomic design for ease of use