The 3M Sanding Abrasive Discs are designed for use in the transportation and heavy equipment industries, specifically for blending applications. Made with aluminum oxide abrasive material, these discs have a maximum speed of 25000 rpm and an overall diameter of 2 inches. They are sold individually and are compatible with disc sanders. The product is made in the United States and weighs 0.24 oz, with a lead time of 2 days. The brown discs are quick change discs that offer a high volume of 3.21 cubic inches, making them ideal for efficient sanding tasks.