Item:  Aluminum Oixde Abrasive Fiber Sanding Disks for Disc Sander Application:  Iron, cast iron, mild steel, aluminum, welding rods, non-ferrous meal. Brand:  Deerfos Model No.:  VA113 Type:  Fiber Discs Diameter:  4', 5', 6', 7', etc. Grade:  36, 40, 80, 100, 120, etc. Color:  Maroon Abrasive Grain:  Premium Aluminum Oixde Backing Material:  Fiber 0.80mm Features:  Fast cutting, longer wear, can be used in rough-sharping or in polishing Package:  100 Pieces per Box for Abrasive Fiber Sanding Discs MOQ:  100 pieces Sample:  Available Payment Terms:  T/T, L/C, Western Union, Paypal· Ideal for use on many surfaces, including wood, metal, and fiberglass· Designed especially for high speed power tool sanding· Developed for stripping or coarse sanding and grinding· Heavy duty fiber backing fiber sanding discs stay sharp, resulting in a more consistent sanded surface and a longer disc life