[150 Pcs Assorted Grits]: 150 Pcs 3 inch sandpapers: 400, 600, 800, 1000, 1200, 20 pcs of each; 1500, 2000, 3000, 4000 grits, 10 pcs of each; 5000, 10000 grits, 5 pcs of each. 11 Pcs different grade sand discs meet all your polishing needs. [Practical Accessories] 3 Pcs interface pad reduces shaking, perfect for polishing uneven surfaces such as wood. Wool pad Perfect for ultra polishing and waxing. 3 inch backing plate a quarter inch shank suitable for most types of rotary tools, such as electric drills, die grinders and air grinders, etc. [Quality Assurance] Made of high quality silicon carbide combined with the latex waterproof backing base which uses electrostatic sand planting technology makes the frosted smooth, good flexibility. Prevent clogging, anti-static, wear-resistant, with excellent service life and excellent processing. [Wet and Dry Use] Perfect for wet and dry sanding. Wet sanding can reduce dust splash, minimize frosting scratches. Hook and loop design for easy and