Limited Quantity Available. The Shadow series of boxes are designed with premium materials to be lightweight and strong. Featuring dual side opening for easy loading from either the driver or passenger side. The Shadow series boxes also feature a user-friendly locking system that only allows the key to be removed when the lock is engaged, ensuring your cargo will always be protected. A special injection molding process creates a strong base that is stronger and far more supportive than other single layer type boxes. The base is also formed in a special wind diffuser design, to reduce wind resistance and enhance aerodynamics. The top is a triple layer of ABS covered with a weather protection layer and then clear acrylic for protection. Featuring "Memory Mount" clamps that will fit square, aerodynamic, round and most factory crossbars between 1"-3.5" wide and .75"-1.37" tall. Includes two load straps to secure cargo inside the box.