Product Description: This product is made from high-grade plastic and through a special process layer of Velcro to material that can be installed in the disc polishing machine and grinder, and its main advantage is that by polishing sticky Velcro on the disc and on a piece of sandpaper flannel adhesive, upper and unloading with ease, saving time and effort. Automotive, shipbuilding, metallurgy, furniture and other manufacturing industries, rust, ideal for polishing abrasive.