The 3M 02601 Grade Ultra Fine Softback Sanding Sponge is a high-quality abrasive tool designed for automotive use. With a soft backing for added comfort and control, this sponge provides a gentle yet effective sanding experience. The 4.5-inch x 5.5-inch size and grit of 800 make it versatile for various sanding projects. Product comes in a convenient box of 20, ensuring you have an ample supply for your shop needs. The gray color and trusted 3M brand make this sanding sponge a reliable choice for automotive professionals.