The 3M 31483 Cubitron II Hookit Clean Sanding Disc P320 comes in a pack of 50, each disc measuring 150mm/6in. These abrasive discs are designed for wet or dry sanding applications, making them versatile for various automotive maintenance tasks. With a grit size of 320, they provide a smooth and consistent finish, ideal for professional use in workshops or DIY projects. Made by 3M, a trusted brand known for high-quality products, these discs are a must-have for any automotive enthusiast or professional mechanic.