The 3M 36192 321U Series Multi-Hole 220 Grit Abrasive Sheet Roll is a high-quality, durable product designed for various abrasive sanding tasks. With a grit size of 220, it provides a medium level of abrasion for efficient sanding and finishing. The blue color indicates the specific grit level and the 2-3/4 inch x 13 yard size makes it convenient for a wide range of applications. This product is a reliable choice for automotive detailing, woodworking, and other sanding projects.