These heavy floor sweeps are used for heavier dirt and debris. Superior construction makes these sweeps the ideal tools for use on unfinished concrete or rough floors. Wood block, blue polypropylene with 3" trim and black foam block, and brown palmyra with 4" trim and wood block. Accepts threaded handles. Our heavy crimped plastic throughout the block is resistant to oil, water and most chemicals. Long bristles will not mat in wet applications. 2 threaded handle holes. Use on unfinished concrete or rough floors.