Different GritThe Sandpaper set includes 36 sheets of 125mm sandpaper, the Sanding Discs sandpaper has 9 different grits: 80010001200150020002500300040005000. Different Grades of Sandpaper Sanding Discs can meet your different polishing needs, each sandpaper 125mm Sanding Disc has number marking on the back. Premium Material125mm Premium Sandpaper is made of latex paper and silicon carbide for 30% more abrasion resistance. Sandpaper Sanding Discs are anti-static, have a uniform grain size and very little dust, Round Sanding Disc 125mm withstands wet and dry applications, is very flexible and does not break easily when polished. Velcro DesignThe 125mm Sanding Discs can be used for hand polishing, the Round Sanding Disc Sandpaper has a Velcro design on the back to stick on the sanding disc to reduce vibration when grinding. use, the 125 mm Sandpaper is easy to install and remove with Velcro, Allows sanding quickly and efficiently. Unique DesignDue to the non-porous design of the Sanding Discs sandpaper, the 125mm sanding disc sandpaper can be used for both wet and dry polishing, wetting is more effective as the particles on the sanding surface are washed away, preventing clogging. At the same time, the upgraded 125mm Sanding Discs have clear grit marks on the non-woven backing, effectively saving your working time. Wide Use125mm sandpaper is compatible with most rotary tools, such as grinders, air sanders, electric drills, etc. Sandpaper Sanding Discs 125mm can also be used for metal, wood, plastic, aluminum, artificial stone, wooden furniture, mold making, precision equipment polishing, car polishing, hand polishing of jade jewelry.