ARIES AdvantEDGE 5-1/2" x 53" Chrome Aluminum Running Boards Model 2555020ARIES AdvantEDGE 5 1 2" x 53" Chrome Aluminum Side Bars, Fits Select Silverado, Sierra Model 2555020 ARIES AdvantEDGE side bars do away with the common, rounded look of other side bars, nerf bars and running boards, featuring an angular, eight sided tube profile and powder coated all aluminum construction. The angular edges provide a clear cut, uncompromising accent for the look of today's trucks. Made from 5 1 2" wide, eight sided, extruded aluminum