1. Unlike other sanding discs and paint removing wheels, these pads have great wear resistance and will not damage the aluminum while remove even tough paint in an old airstream. Besides, if you are looking for some wheels to polish stainless steel tube, then buffing pads will make the tube repaired from small scratches and damages and to shine . 2. sanding grinding wheels set are suitable for angle grinder, polishing tools. Widely used for cleaning, finishing & polishing on metal, stainless steel, glass, jewelry, plastic, , , wood crafts. 3. Nylon Fiber Flap Discs with Sandpaper --- Can removes rust, paint and coatings of irregular curved surface quickly and , without damaging the surface; High tenacity fiber, viscose, resistant to water and oil, long service life. 4. 6Pcs Nylon Fiber Flap Wheels --- Including 6Pcs 240 Grit green nylon fiber flap discs for high speed sanding and heavy duty removal, delivering fast and long lasting cut, suitble for polishing and finishing all kinds of surface conditions. Will satisfying your requirements from removal to fine polishing. Style:Grit 240 - Red(With Sandpaper) Type: 240# (Red, with sandpaper ) Colour:Red Material:Nylon scouring pad Size:100x16mm Diameter: 4 Inch Package Contents: 6 x 240# Nylon Fiber Flap Disc (Red, with sandpaper ) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.