The 10-S Linesman line sweeper has a positive locking brush action and a textured coarse/stiff brush for an easy-to-use, yet firm brushing action. It is constructed of aluminum for years of rust-free use. Replacement brushes and parts available. * Please note we recommend the fine Bristle liner "WL2004". The stiff bristle when new often creates too much friction between the line and brush causing it to skid *