The heavy duty stainless steel roller kit from Van Guard fits the Nissan NV400 2010- Medium Wheel Base (L2), Medium Roof (H2) With Twin Rear Doors. It's great for any tradesman. The roller allows easy loading and unloading, the stainless steel build is durable and long lasting. The roller fits a range of ladder shapes and sizes, as well as protecting the rear of the vehicle from damage. This roller is best used with ULTI bars and rack systems.