Edward Tools Diamondback Boot Brush is a heavy duty outdoor boot scrubber with a heavy duty metal frame and extra strength bristles. The metal lip edges are ideal for scraping the sole of the muddiest boots. With 4 mounting screws this boot cleaner can be mounted to a piece of wood or floor. It is heavy enough it could also be used as a standalone shoe cleaner. Edward Tools Diamondback Boot Brush comes with a lifetime warranty.