Features: -These brushes ride in an aluminium housing that permits the brushes to flex. -This movement allows brushes to compress in tight corners and contour themselves over lipped edges and curved corners. -All brushes are compatible with the DF-701 and DF-700 kit.-MBX Coarse (or Fine) Replacement Brush. Product Type: -Wire Brush Abrasives.Dimensions: Overall Product Weight: -0.2lbs (= 90g).