Backing: Y Weight Cloth Grain: Silicon Carbide Bond: Resin over Resin Coat: Close Size: 1 1/8" " X 21", other size is on your request. Joint: Tape, S joint and Overlap joint is available. Grit Ranges: From P24---P180 APP: Be used on polishing MDF. HDF Board, Glass. We are the professional Manufacturer, We have the whole conversion production line for Belts. We would produce the belts size as per your Requirements.