The UWS Secure Lock under tonneau chest box is the ideal truck bed tool box for pickups with a tonneau cover. It features a low profile for wide-range compatibility, dual Secure Lock handles, our patented Rigid Core lid, extra-thick aluminum construction and a dependable USA-made construction. This UWS under tonneau tool box is engineered to be compatible with a wide variety of tonneau covers. It measures just under 16-1/2" tall to sit low in the truck bed and offer enough clearance for most tonneau covers. The lid is also offset toward the rear to maximize storage area and maintain unobstructed lid operation. The lid self-opens to a full 90 degrees for convenient access when your hands are full (may be limited by tonneau cover style).