Thule Summit Cargo Box (aka car-top carrier), approximately 20 years old and in decent condition. Dimensions: approx. 91" long, 23" wide and 12" deep at highest point. Mounts to Thule crossbars (included). May also be able to mount on other bars. Locks exist, but no keys available. It may be possible to purchase them as after-market accessories. We used this box to carry skies usually. It also is good for carrying camping supplies or extra luggage that does not fit in the car. I have been told this box can be stored hanging from your garage ceiling, and can be installed by a single (somewhat strong) person.