StackTech XL Tool Box offers ample space and sturdy construction to accommodate a wide range of tools and equipment. It features an intuitive self-aligning top that allows StackTech tool boxes and organizers to virtually stack themselves. An auto-locking interface ensures boxes sit securely, lock into place for transport, and easily unlock with the slide of a switch. A prominent lock indicator lets you know your Stack is safe to move without second guessing. Accessing tools is simple and intuiti