Image shown is actual grain. These are industrial grade 37" x 75" DW Sanding Belts. High performance aluminum oxide, fully polyester, "Y" weight, with an open coat. It is designed for heavy duty wood sanding. Best suited for wide belt sanding applications in coarser grits, where backing strenght is required. Keystone Abrasives warranties all of our sanding belts for manufacturer's defects and your satisfaction is completely guaranteed!