Sanding Belt, Abrasive Material Zirconia Alumina, Abrasive Type Coated, Coating Coverage Closed, Grit 40, Series BlueFire R887D, Grade Extra Coarse, Overall Length 20 1/2 in, Overall Width 3/4 in, Resistance Properties Fray, Backing Material Polyester, Backing Weight Y, Flexibility Type Regular, Bond Type Resin, Color Blue