Features:* * High cutting strength, good wear resistance * Widely used in polishing Artificial stone, furniture and wood products, metal, automotive and other items.* Easy to use, simple and low cost. Ideal for polishing wood products.* Made of silicon carbide and waterproof sandpaper. The sandpapers can be used for wet and dry sanding. Electrically coated, it ensures uniform grain distribution.*Prevent clogging, anti-static, good flexibility, wear resistance, which provides exceptional service life and excellent finishes. It is more effective when wet because clogging is reduced by particles washing off the grinding surface. It can be used for precision grinding of mold surface, as well as in stone, varnish surface, mirror surface treatment, such as headlight polishing. Waterproof sanding discs can also be used for dry sanding, it is harder than white dry sandpaper.*Furniture wood finishing, drywall sanding, automotive for metal polishing, almost all polish works can be finished with them. Just choose the right sandpaper for your job. Grit refers to the average diameter of the particles. The smaller the grain count, the coarser it is. The higher the number of grain, the finer it is. Specifications:* Color: As pictures show* Diameter: 75mm/3inch(Approx.).* Grit: 1500,2000,2500,4000GritPackage Contents:20* Sandpapers (5pcs each for 1500,2000,2500,4000Grit)Note:The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.