UWS Aluminum Trailer Toolbox part # TBV-49-BLK is a Diamond Tread Tool Box designed for mounting on the straight tongue of a trailer. The UWS Trailer Toolbox has a Aluminum One-Piece tub and lid designed to support heavy loads, absorb tool drops and prevent leakage. The Patented Foam Filled Lid creates a solis structure to prevent bending or warping and ensures easy opening and closing. The Stainless Paddle Latch/Lock provides strength, security and long-term corrosion resistence. The UWS Trailer tongue tool box has a MicroSeal Stripping along the lid which helps seal out moisture, dust and dirt protecting tools from the elements.