Go Rhino RB30 Slim Line running boards offer a low‑profile, Raptor‑inspired cab‑length step for trucks, Jeeps, Broncos and SUVs. At roughly 5" wide for most of their length, the slim boards mount to factory points on 16‑gauge zinc‑coated galvanized steel brackets, support 300 lbs per stepping surface (600 lbs per board), resist corrosion with durable finishes and are available in textured black or protective bedliner, with a limited lifetime materials warranty and a 5‑year finish warranty.