This a for Sprinter 144 or 170 and 170 extended rack universal removable cross bar. this cross barcan hold  your smal boat or kayak so you can safely use it during your next camping trip. the removable cross bra goes with an installation kit will not interfiere with mesh Flooring. installation will be adjustable or fix. making the services such as (eg. trim for sunroof, GPS antenna, Fans, A/C units, etc.). work totally independent in the rack and will hol up to 150 libs. for  more weight capacity you can add as many as you need to cover your application