There are multiple tools including mop, sanding discs, back up sanding pad, M16 drill adapter and sponge buffer pad that we can offer you, which can perfectly meet your polishing demands.Polishing pads and sanding discs are waterproof and reusable. Each light only needs 3 pieces of sanding discs (p2000, p5000, p10000), and this set can be used on up to 4 lights.Made of sandpaper and sponge, it is durable to use.The diameter of this disc is 7.5cm.You firstly use the polishing pad, and then use the sanding discs. The principle is low grain to high grain (P240-P400-P800-P2000-P5000-P10000).Item Name: Sanding DiscsMaterial: Sponge,SandpaperQuantity: 21Pcs or SetFeatures: Car Light Restore Tools, Polishing, Sanding, ReusableSize Details: Size: 7.5cm x 5.5cm or 2.95" x 2.16" (Approx.)Pad Diameter: 7.5cm or 2.95" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:3 x Mop(P240 or P400 or P800)15 x Sanding Disc (P2000 or P5000 or P10000, 5Pcs for Each Size)1 x Back Up Sanding Pad1 x M16 Drill Adapter1 x Sponge Buffer Pad Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.