Description Made from premium open coat aluminum oxide grain High grinding efficiency good effect practical to use The belt interface is firm not easy to break and has a long service life Suitable for all types of 330 30mm belt sanders and polishing machines Suitable for grinding and polishing wood materials aluminum products plastic and glass fiber etc Specifications Product Name Sanding BeltsMaterial Alumina Hard ClothColor Reddish BrownQuantity 10PcsGrits 120 320 600 800 1000 Grits each Grits get 2 pcs totally 10pcs Size 330 30mm 1 2×13 0inchPackage Included 1 x Sanding Belts Set 10Pcs