Cleaning Sabco Bulldozer Heavy Duty Deck Scrubbing BrushSabco Bulldozer Heavy Duty Deck Scrubbing Brush Deluxe rubber bumpers protect surrounding objects from damage Features scraper on scrub head to help remove stubborn dirt Long lasting bristles for aggressive scrubbing The Sabco Bulldozer Heavy Duty Deck Scrub features superior long lasting bristles for aggressive scrubbing and includes rubber bumpers on edges to protect surroundings when scrubbing.