Accommodates a range of ladder shapes and sizes whilst protecting the rear of the vehicle from damage when loading or unloading. Van Door Type: Twin-Door Van Roof Height: Low Roof Van Wheel Base & Code: SWB (L1H1) Plastic & Steel Construction Only Fits Van Guard Roof Bars Code 3847T & 4575T Quick & Easy to Install Fixed Roller Kit Corrosion-Resistant Van Door Type: Twin-Door Van Roof Height: Low Roof Van Wheel Base & Code: SWB (L1H1) Plastic & Steel Construction Only Fits Van Guard Roof Bars Code 3847T & 4575T Quick & Easy to Install Fixed Roller Kit Corrosion-Resistant