Truly a unique product, the Hard Shell Cargo Carrier was designed to be shipped and displayed on retail shelving. The bottom body nests and fits inside of the lid, significantly cutting down shipping and storage volume. However, its small footprint does not take away from luggage storage volume or features. The unique nylon spindle and hook system provide a secure hold to the two halves, while preventing scratches or tares to the items inside. The entire unit is safely and securely locked by any simple pad lock. And a unique U-Bolt and multiple hole system enable the carrier to attached to any roof rack rail system. With equal or greater capacity to other products in the market, the Hard Shell Cargo Carrier a step above the rest for less. Available through http://www.cargosmartllc.com/aero/hard-shell.aspx