Diameter of the hammer head: 30/35/40 mm Double-sided hammer: Multi-function hammer with rubber and nylon head, the soft surfaces do not hurt your hands and provide a solid strike without damaging the work surface. It comes with removable ends for replacement easy Stable and Smooth: The lightweight hollow tubular steel handle shifts the balance of weight towards the head, increasing the force of each stroke, especially in confined workspaces Non-slip rubber grip: The non-slip rubber grip provides a solid grip, zero vibration and no bounce, with ergonomic design, comfortable grip, suitable for prolonged use Ideal for tough and long lasting jobs, such as wood, plastic, leather, jewelry and crafts, etc. Size: 40 mm Features: Top quality product. High quality steel handle, with ergonomic design, comfortable grip, suitable for prolonged use. The yellow hammerhead part is made of polyurethane, soft and translucent. The black part is made of high quality steel, tap resistant, non-slip, anti-oil, The hammer can be replaced to meet your different needs. Features: Materials: steel, rubber, plastic, nylon. Color: as shown. Hammer head diameter: 30/35/40 mm. Note: As measurements are taken by hand, the sizes shown may vary slightly. Thank you for your understanding. Depending on the brightness and lighting settings of monitors, the actual color of the item may be slightly different from the photo. The actual product is the only one that can be considered standard. Content: 1 rubber hammer or hammer head.