Superb Estate Roof Bars are the ideal solution for transporting large items, especially when these items are too large for the luggage compartment. It is very easy to secure the transverse roof carrier to the roof rails simply flip the eccentric lever down and you're done. The transverse roof carriers are lockable, thereby deterring thieves. The T-slot allows other practical, relialbe, lockable transportation systems such as bike racks, ski racks, ski and snowboard boxes, luggage racks, etc... to be fitted to the transverse roof carrier. The transverse roof carrier is subjected to rigorous testing for corrosion resistance and durability. It also undergoes the City Crash Test (test method for transportation systems) to ensure that it is both strong and durable.