Descriptions:Made of nylon bristles, sides of bristles act as flexible files to all kinds of holes, grooves and corners.Great tool for removing rust and painting from flat surfaces, lightly sanding wood and preparing metal or wood for painting.Suitable for woodworking, mahogany furniture, three plywood surface finishing, the purpose of complex furniture wood grain processing, concave and convex surface grinding operations.Specifications:Color: GrayGranularity: 80 Grit ,120 Grit , 180 Grit, 240 Grit, 320 Grit, 400 Grit, 600 Grit, 1000GritWheel Material: NylonPackage Content:8 x Nylon Wheel Brush