Tubular Side Rails look great and fit the rocker panels snugly. Side rails have passed stringent corrosion and appearance testing for long life. Premium Tubular Side Steps are constructed of lightweight anodized aluminum or powder-coated steel. Tubular Side Steps are mandrel bent to ensure the steps maintain a consistent diameter. Premium Side Steps include molded end caps to accent your vehicles styling. Both Premium and Tubular Side Steps provide wide skid-resistant stepping surfaces for easy vehicle entry and exit. May not be compatible with Front Splash Guards. Chromed Aluminum- Cab Length Tubular Side Steps for Crew Cab- 5-inch Oval with two black composite step pads.