Lund's TrailRunner Running Boards offer maximum durability, performing under the most rugged conditions. The wide step provides sure footing in any weather, and four available lengths mean a sure fit for trucks and SUVs. Available in an industrial diamond-plate aluminum design with brite finish, and in heavy-duty extruded designs with brite or black finishes. Constructed from heavy duty, yet lightweight aluminum, these boards feature molded, adjustable end caps for a custom fit appearance. These running boards come pre-assembled and install easily using the Multi-Fit EZ Bracket Mounting Kit (sold separately). The mounting brackets are made to custom fit your specific truck or SUV's make and model, providing added safety and convenience..Maximum Weight Capacity is 350 pounds