Description[ Material ] - Made from aluminum oxide, yellow-coated, these sandpapers have the high-strength polishing ability and long-lasting grinding power.[ Wet & Dry Use] - Each sheet has a durable waterproof paper backing, flexible and soft, fits well for hand and block polishing. Use for both wet and dry sanding.[ Application ] - It is widely used in wood processing, drywall sanding, metal sanding, precision polishing in furniture, decoration, and other industries. [ Size ] - The sandpaper size is 9-inch in length and 3.6-inch in width, can be cut to any smaller size according to the needs of different sanding projects.[ Assorted Grits ] - We have 7 different grit range from 80 to 600 for choice, come with coarse, medium, fine grades.SpecificationGranularity: 80 GritsSize: 228mmx93mm/9" x 3.