1.Cleaning &Strip Disc: 2.With fiberglass backing, 3.more stronger, 4 ... angle grinder 5.no pad required Specifications:Cleaning &Strip Disc: With fiberglass backing, more stronger, used for angle ... grinder no pad requiredCleaning &strip disc 1.Material: Non-woven(nylon) with Silicon carbide,fibergalss ... customer's request.Factory capacity: clean and strip wheel, strip disc