Checkers Diamondback 4.5" hose bridge system provides protection for valuable cable and hose lines while ensuring a safer method of passage for vehicles. They replace wooden and metal fabricated ramps and can be used to protect lines up to 4.5 inches in diameter. High density, all-weather polyurethane construction protects from damage by physical pressure and reduces cable and hose maintenance and replacement costs. The lightweight, modular design of interlocking sections provides multi-length flexibility. Checkers Hose Bridge Systems are intended for temporary installations only.