Image shown is actual grain. These are industrial grade SILICON CARBIDE waterproof sanding sheets. The Wet or Dry sanding sheets are made with a high quality latex impregnated paper. Wet or Dry sanding sheets are commonly used for sanding paint, primers, and other finishes. 60-150 grits are on a "C" weight backing, while 180-3000 grits are on an "A" weight backing for a consistent cut and finish. Keystone Abrasives warranties all of our sheets for manufacturer’s defects and your satisfaction is completely guaranteed!