H&M ABRASIVES-USA's MINI Flap Discs are manufactured  in accordance with ANSI safety requirement and . standard. They are made with top quality zirconia cloth, top quality in the world and premium abrasive gain. Offer many advantages over mini fiber discs: overlapping construction eliminates edge wear. lasts 10-20 times longer life. Quick change. Grinding and finishing surface in one step without the need for an additional backing pad.