The self-adjusting tool boxes offer a flexible and practical solution for the safe transport and storage of your tools. They fit perfectly on the tool box with castors so that you can transport your boxes comfortably and stably. The automatic locking mechanism ensures that the box locks reliably as soon as it clicks into place, guaranteeing safe handling. With the slide switch, you can easily open the box or check whether it is locked and ready for transport. The quick-release accessory rails allow you to customise the toolboxes according to your needs and tailor them perfectly to your requirements. The large, central pressurised opening provides quick access to your tools, so you always have the equipment you need to hand. The high-quality construction of polymer, powder-coated steel corners and a steel-reinforced lid ensures exceptional durability and protection. Each toolbox is equipped with two locking options suitable for all standard locks for added security. The removable telescopic handle allows for easy transport, while the 22 cm diameter all-terrain tyres ensure that the boxes can be moved easily even on uneven terrain. These robust and functional tool boxes are the ideal choice for anyone who needs a flexible, safe and durable solution for their tools. Scope of delivery: 1x Toughbuilt StackTech TB-B1-B-30 tool box. 1x Toughbuilt StackTech TB-B1-B-50 tool box. 1x Toughbuilt StackTech TB-B1-B-70 tool box. 2x insert with lid. 4x insert. 4x divider.