[150 PACK ASSORTED GRIT]: 150pcs 3 inch sandpaper: 400, 600, 800, 1000, 1200 grit, 20pcs of each; 1500, 2000, 3000, 4000 grit, 10pcs of each; 5000, 10000 grit, 5pcs of each. 11 different grade sand discs meet all your polishing needs. [Practical Accessories]3 pcs interface pad reduce shake, Perfect for uneven polishing such as wooden bowls. Wool pad Perfect for ultra polishing and waxing. 3inch backer plate a quarter inch shank suitable for most kinds 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 use the electrostatic sand planting technology makes the frosted smooth, good flexibility. Prevent clogging, anti-static, wear resisting, with excellent service life and excellent treatment. [Wet and Dry Using]Perfect for wet and dry sanding . Wet sanding can reduce dust splash, minimize frosting scratches. Hook and loop design for easy and quick