Heavy duty carrier designed for tough commercial/industrial use. Fits all American and foreign makes. Extends from 50" to 72" with an adjustable bracket to secure load. Heavy gauge steel with baked enamel. Supports load off roof. M-5671, same as M-5660 except increases load stability. Optional Adapter Kit available for use on Chevy, Astro, GMC Safari and Ford Aerostar Vans.