BRAND NEW UNUSED!!! Both boxes were delivered to site in error, unused and too big for my needs. The ToughBuilt® StackTech® Rolling Tool Box forms the perfect cornerstone for Pros to build a system unlike any other and customise it to the needs of every trade. The StackTech Rolling Tool Box is the mobile foundation of the system. It features an intuitive self-aligning top that allows StackTech boxes and totes to virtually stack themselves on the Rolling Tool Box. Full customisation is at Pros fingertips with tool-free, quick-release steel accessory rails.