Accommodates a range of ladder shapes and sizes. Protects rear of vehicle from damage when loading or unloading. Only compatible with Van Guard ULTI bars. Van Door Type: Twin-Door Van Roof Height: Standard Roof Van Wheel Base & Code: SWB (L1H1) Plastic & Steel Construction Van Guard ULTI Bars Quick & Easy to Install Fixed Roller Kit Corrosion-Resistant Van Door Type: Twin-Door Van Roof Height: Standard Roof Van Wheel Base & Code: SWB (L1H1) Plastic & Steel Construction Van Guard ULTI Bars Quick & Easy to Install Fixed Roller Kit Corrosion-Resistant