Multiple Grit Options: you receive 140pcs 5 inch sanding discs and 1 interface pad, containing 7 grits: 400/600/800/1000/1500/2000/3000 grit, you can use them for projects that require different degrees of wear Wet and Dry Use: our hook and loop sandpaper is designed for both dry and wet use, suitable for a variety of surfaces, including wood, metal, plastic and automotive surfaces, and can be cleaned with water to prevent clogging and extend service life High-quality Materials: the orbital sander sandpaper is made of heavy-duty abrasives and waterproof paper, tear-resistant, ensuring sanding Evenly distributed grains provide you with long-lasting, cleaner sanding, improve efficiency, and are ideal for wet and dry sanding Easy to Use: the wet dry sanding discs features a hook and loop system that allows them to be easily attached to or removed from sandpaper tools, compatible with most 5-inch orbital , and the reserved 8 holes efficient dust removal, keeping your workspace clean