Handle Diameter: 12mm/0.47inchIt is made of hard metal. High-quality workmanship makes it strong and durable for use.Material: Plastic+MetalBrand new and high quality.Long handle is more ergonomic.1 x Watch Back Case OpenerTotal length: about 104mm/4.09inchGreat for opening watch back case and replacing watch batteries.Color: BlackThe watch back remover is very easy to apply. You can simply locate the tip and using the watch back remover to gently prize the back off.You are able to open watch immediately and effortless and it won't scratch your watch at all.Handle length:about 70mm/2.76inchWeight: About 27g