Function: 1. 5 particle sizes: the sandpaper set has five particle sizes of P100, P240, P320, P400 and P1500, which can meet your different sanding requirements 2. Scope of application: the sandpaper is suitable for all sanding bars with a width of 1 inch and 22 mm to 25 mm. Length equal to or longer than most sanding beams 3. Wide Compatibility The sandpaper sheet for arts and crafts, wood, automotive, metal and plastic applications for polishing 4. WET AND DRY USE The sandpaper adopts waterproof and tensile resistant technology that can be used for wet and dry use 5. Small and compact: the small and compact housing does not take up too much space, which is convenient for storage and use Specification: Item Type:Sandpaper Product material: sandpaper Product use: polishing Package list: 20 x sandpaper.