Image shown is actual grain. These are industrial grade 3" x 132" EJ sanding belts. EJ is a standard flexible "J" weight aluminum oxide poly cotton coated abrasive material, with a semi-closed coat. EJ is strong, but yet very flexible. EJ has a white no fill backing. EJ is good for sanding wood, carbon steel and non ferrous metals. Keystone Abrasives warranties all of our sanding belts for manufacturer’s defects and your satisfaction is completely guaranteed!