The product is a set of 3M 80 Grit 5-inch disc hook loops, with a total of 300 discs in 4 boxes. These discs are designed for automotive use and come with a manufacturer part number of 0967. The discs are known to create wood dust during drilling, sawing, sanding, or machining wood products, so users are advised to avoid inhaling the wood dust or to use a dust mask for personal protection. This product is a reliable and high-quality option for automotive shops and professionals.