Shop Nilight Running Boards for 2018 2019 2020 2021 2022 2023 Jeep Wrangler JL Unlimited 4 Door Dual-Stage Textured Black Powder Coated Slip-Proof Side Step Nerf Bars in high quality, support 2 Years Warranty. Premium two stage textured black power coat finish offers exceptional rust and corrosion resistance, made by 2mm thickness heavy duty mild steel, proven to handle up to 550 LBS each side.