【Parameter】- The diameter of this adhesive-backed sanding sheets is 12-inch / 300mm, the number grits of it is 60 grits. The larger the grits number of the sanding disc, the finer the grain size, please buy the right product according to your needs..【Aluminum Oxide Material】- The no-hole sanding disk is made of high-strength aluminum oxide grain textile, designed for high speed sanding and removal, delivering fast and long lasting cut. Durable and can long-term use, very suitable for woodworking and metal processing to remove rust paint and surface sanding..【Self-stick Back】- The adhesive of PSA sanding paper has strong stickiness, make sure it's not easy to fall off at work. Moreover, it is easy to clean up, and there is almost no residue after the sand paper is uncovered. Even if there is, the residue is very few. It can be easily removed by gently rubbing with rubber..【Good Abrasion Resistance】- The aluminum oxide sanding discs has very good grinding performance, strong cutting force, sharp, abrasion resistance, high efficiency, low consumption and durable..【Wide Application】- Adhesive-backed sandpaper widely applied in furniture, automobiles, yachts and other industries of metal and non-metallic materials to surface sanding deburring, corrosion, paint, polishing of solder joints, sanding grinding discs set is ideal for removing coating rust or dirt.