Aries 2055519 6.5" RidgeStep Commercial Running Board Brackets Includes RidgeStep running boards C2891 and mounting brackets 2055121 High-strength, all-steel construction with no plastic parts Angular design for a tough, no-nonsense look Non-skid, all-steel tread will not wear or crack Flat profile and 6 1/2" width provide a comfortable step. Rise to the challenge and master the job with ARIES RidgeStep commercial running boards