39 Inch Black Aluminum Tool Box. Size 39″(L) x 12.8″(W) x 10.43(H). Surface Finish: Powdercoated Black Aluminum; 5 Bar Tread Pattern Strengthens the Aluminum for Maximum Durability. Lightweight Box is perfect storage solution. Lightweight of the Truck Toolbox reduces weight gain on tractors, trailers, or trucks; Seal Ring Design: Protect the internal cleanliness and prevent the entry of rainwater and other external factors; Tool Box for trailer provides storage space for your truck/trailer/garage/domestic use. Aluminum Trailer Tool Box is characterized by high-intensive & corrosion-resistant; Weather-resistant over – lapping lid design, preventing any undesired leakage; Unique high quality and durable appearance. With Lock and Keys. This aluminum box has a lock and 2 keys so you can safely use it to prevent things from being lost. Use compressed gas to keep the lid open while you open the tool box, no need to hold it. Support opens lids to a maximum angle of 90 degrees. Thank you for choosing us, we suggest. If there are any problems with your order, including. We are happy to offer solutions to your inquiries.