Abrasive belt feature: 1) Material: alumina oxide, silicon carbide. 2) Polishing, sanding unfinished wood 3) Customize size Abrasive belt features: 1) Material: alumina, silicon carbide 2) Grit size: P24-600 3) Specially designed for auto bodywork and furniture 4) Can be used on all unfinished and painted surfaces 5) OEM is available