One of the key features of these ball bearings is their strong construction. Made from stainless steel, they are resistant to deformation and built to last. Additionally, the set comes with enough replacement parts, making it easy to replace or repair any damaged devices. Features -Color:Silver -Material:316 stainless steel -Size:1.20X1.20X1.20cm/0.47X0.47X0.47in -The precision construction of these ball bearings ensures reliable performance your machine or other devices. -With their premium steel materials, the steel balls extended use without getting rust or damaged easily. -Steel balls provide smooth and consistent operation, which can help to reduce wear and tear on the machine. -Steel ball bearings have a low coefficient of friction, improving the efficiency of the machine. -This set of ball bearings includes enough replacement parts, making it easy to repair and maintain your machinery or equipment as needed. Package list: 12 x steel balls