Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.4.Made of rubber and aluminum.5.Suitable for Bearings Belt Grinders Sanders.6.The product has been applied by mechanical processing department, assembly and tools and other departments.Specifications:Material: Rubber + AluminumColor: Black SilverBrand name: BQLZRSize: approx 10x5cm/3.93x1.97 inch (OD x H)Inner Dia: 46mmWeight: 154gPackage include:1 x Belt Grinder Rubber Wheel