New design: Hook and loop, easy and quick to stick. 125mm hook and loop sanding discs, easy to install and remove. Meet all your needs: 1500#x50pcs UNIVERSAL - Used to apply sanded finishes to wood, paint, plaster, metals, composites and many other materials. Suitable for BOSCH multiple sanders. Wide Application: Perfect for metal polishing, rust removal, woodworking, plastics, leather, rubber and glass. From coarse to fine, to meet your highest polishing needs with good sanding effect. Durable and anti-static - Made from high quality alumina abrasives, ideal for sanding and polishing. The sandpaper assortment includes 36 grits of grit, so you have a nice variety for whatever type of project you're working on. If you need coarser sanding or just need something high precision sanding, this set has everything you need for those and in between. Features: - Dimensions: 9" x 3.6" 1-3cm - Material: Made of silicon carbide with electroplated coating which can be used on both wet and dry ground Grit 320 to 400: For light sanding between coats of finish, or for sanding metal and other hard surfaces. Grain 600 to 800: for the final finish before painting. Grit 1000 to 1500: for sanding between coats.