Spectrum boot ‘n shoe brush 14-3/4 long x 16-1/2 wide – blue features: helps eliminate bacteria, refuse, dirt, and other contaminants from being tracked into food processing areas chrome steel tube frame can be securely bolted to the floor for security and convenience brushes flip up to expose a steel scraper for removing heavy debris non-absorbent plastic block with long lasting polypropylene bristles base resins used to produce blocks and bristles are made of fda approved materials bpa free