1. High-quality materials The sandpaper combination pack is made of high-quality silicon carbide, which is wear-resistant, efficient and effective. With electroplating technology, the abrasive is evenly distributed on the sandpaper, giving the sandpaper a good texture. The silicon carbide abrasive is firmly attached to the fine sandpaper and will not fall off during sanding. The backing paper is durable, tear-resistant and flexible 2. Various grits, identifiable numbers The sandpaper combination contains 60 sheets of 120150180240320400500600800100012001500200025003000 grit wet and dry sandpaper, 4 sheets of each, providing you with a variety of choices from coarse to fine. You don't have to buy a full pack of each grit. With these variety-packed sandpapers, you can choose the right sandpaper for a variety of projects. The grit number is printed on the back of the sandpaper, which can help you easily identify the grit of the sandpaper3. Waterproof Sandpaper Suitable for Wet and Dry Sanding These sandpapers are made of waterproof silicon carbide, which is very suitable for wet and dry sanding. Whether you want to dry sand wooden furniture or wet sand scratched glass, the sandpaper will not let you down. Thanks to the tensile technology, the sandpaper is very strong and flexible. The wet and dry sandpaper will not fall apart, tear or chip during use4. Standard size, easy to cut The standard size of the sandpaper assortment pack is 9 inches x 3.6 inches, which is easy to use, can cover a large area at a time, and can effectively get the job done, saving your time. You don't have to cut the sandpaper all the time. Take out the fine sandpaper and start using it. Each piece of sandpaper is the right size for hand use or wrapping on a sandpaper block. In addition, you can easily cut the sandpaper into small pieces