Hapro Cronos the solid base.

The Hapro Cronos roof carrier is the solid base for mounting any roof box on your car. With a simple move the roof bars are secured in the system. Safety first. Simply lock  with a key to prevent theft. Rubber covered mountings protect the roof bars against scratches. The mounting system allows quick and simple handling, especially with the integrated tools. The carrier is well-secured, protected against theft and passed the City Crash test without any trouble. Hapro Cronos comes with a 5-year warranty and is the optimal carrier for your safety and convenience.