Dico 50-4 Flap Nyalox Flap Kit 4-inch Assorted Nyalox Flap Brushes, 3-Piece Aluminum oxide infused nylon flap brush lasts up to 10 times longer than a wire brush Will not rust and holds its shape Comes in three colors blue fine 240 grit medium orange 120 grit grey coarse 80 grit Mounted on a 1/4-inch shaft for on portable drills and hand held motors Ideal for paint removal working on edges banisters railings & trim