Compatible with: It is suitable for most kinds of tools, such as die grinders, air grinders, electric drills,cordless drills etc. If you to polish or clean small areas or objects, this kit is a great alternative,it will fit in any "chuck" type drill down to 1 or 4 capacity Flexible Design: The abrasive sanding disk combine with Buffering pad protects against damage to the backing pad. Easier for precise sanding of die surface, polishing of headlight, wood,metal, lacquer, mirror surface treatment, art, jewelry, and craft, etc. Wet And Dry Using: and loop sandpaper supports the quick and easy changing, also prevents clogging, anti-static and has better flexibility, thanks to the high-strength aluminum oxide grain textiles material. for wet and dry grinding.You can use with the polishing agent to create a surface. Colour: Red and Black Material: Alumina and Sponge Package Contents: 200 x sandpapers (80 or 100 or 180 or 240 or 600 or 800 or 1000 or 1200 or 2000 or 3000 each 20 pieces) 1 x back plate 1 x Soft Foam Buffering Pad 1 x metal round shaft Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm. 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.