Kinik 60292871 Flap Disc 310 No. 60 (A60), 4 Inches. 

Soft backed sanding disc, made from high quality German sandpaper, good for grinding and fast grinding. 

• Suitable for polishing, removing weld marks, smoothing the surface to sharpen with materials such as steel, stainless steel, fiberglass, and wooden furniture.
• The sandpaper is flexible and highly elastic, can be used to polish corners, hard-to-reach areas, and curved surfaces.
• Firmly attached with special adhesives, preventing the problem of the cloth falling off or splashing during use.
• Made from high-quality sandpaper from Germany, very sharp, can quickly grind into the workpiece.
• Can be polished at a maximum speed of 12,000 RPM.
• Soft backed sandpaper disc number 60
• Size 4 inches