The Cube+ 30 in is our mid size base unit. It can be used on its own or you can stack tool crown 30 in on top. Combine it with accessories like our drawer liners, divider kit or side tray to create a customized storage system that ideally meets your needs. Cube+ is nearly a foot taller than our regular toolcube products. It features a pull tab lock that keeps the drawers from sliding out while its moving! Add a padlock to the pull tab lock to keep your tools extra secure. It is built with 20 ga aluminized steel and designed to store a wide variety of small and large tools from hand tools like wrenches and screwdrivers to power tools like drills, jig saws, jointers, rotary tools, batteries and chargers. Cube+ comes standard with 3 in castor wheels.