Image shown is actual grain. These are industrial grade 4" x 132" EZ sanding belts. EZ is a NEW "X" weight alumina ZIRCONIA poly cotton coated abrasive material, with a closed coat. EX is a cost effective good quality ZIRCONIA abrasive material that is designed for sanding carbon steel. Keystone Abrasives warranties all of our sanding belts for manufacturer’s defects and your satisfaction is completely guaranteed!