Description: This 18-inch aluminum cross bed tool box is made of 1.25mm thick 5-bar tread aluminum for great sturdiness and rust resistance. Equipped with a single secure lock and double chains, it keeps your hand tools, hardware and accessories safe from theft. Designed for center rear mounting on most pickup truck beds, it works universally with nearly all pickup models. The box comes with full foam wrapping and 8 corner protectors to prevent scratches during delivery. Its compact 18"×17"×18" size offers ample storage space without taking up too much truck bed room. Easy to install with all necessary mounting hardware included, no complicated modification required. .