Image shown is actual grain. These are industrial grade hook and loop Blue Film sanding discs. Blue Film is made on a 5 mil PET film base using PREMIUM aluminum oxide grain, with an open coat. It has non loading and grinding aids in the resin, that provides excellent life and durability. Great for automotive, wood, metal, corian, fiber glass, and many other disc sanding applications. These H & L Blue Film sanding discs are manufactured in the 'Flat Pack Style', each having individual pull tabs for removing the protective liner. Box packaging is available by request. Keystone Abrasives warranties all of our discs for manufacturer’s defects and your satisfaction is completely guaranteed!