Get one-handed operation with the ToughSystem� 2.0 Large Toolbox. It features patented auto-connect side latches, allowing for one hand operation. It also has 2-piece metal front latches for added durability when securing tools inside the box. This toolbox has 20% larger* storage capacity when used with DWST08165 and DWST08450 as part of a tower. The ToughSystem� 2.0 Toolbox is built for real jobsite conditions with high-impact protection**. It is IP65 rated for dust and water resistance and has a 110 lbs. load capacity. The toolbox has a removable inner tray for optimal organization. The ToughSystem� 2.0 Toolbox is backwards compatible with any ToughSystem� product.