These industrial quality Europeannon woven discs have a high strength looped fabric that is glued to the back of the buff and blend discs. This allows for a firm grip to the hook and loop back up pad that you have attached to an orbital or DA sander. Ideal for finishing, blending and polishing. Used for automotive, solid surface and woodworking. These are comparable to 3M’s Scotchbrite discs. 5 discs per pack.