These nylon flap discs are New,Low noise,Long service life. Scouring pad buffing wheel With high flexibility,The self-sharpening,High grinding efficiency,Good heat dissipation. Nylon Fiber Flap Polishing Grinding Wheel perfect for effective dry sanding, grinding, polishing and contour work.Great for removing rust. Widely used in polishing of metallurgy, machinery, light industry, wood products, furniture, metal, plastic, building materials, automobiles and other industries. size:100x16mm Material:Nylon + scouring pad colour:green Package Contents: 10 x Nylon Fiber Flap Polishing Wheel 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.