Spec-D Tuning SSBOE-X16407-NB Mercedes-Benz X164 GL-Class 320 450 Aluminum Running Boards Side Step Nerf Bars 1 Pair of Light Weight Aluminum Nerf Bars Set Includes mounting bracket and hardware 30 Day Money Back Guarantee & 90 Days Limited Warranty Made by OEM approved & ISO certified manufacturers in materials that meet or exceed strict OEM requirements