The TOUGHSYSTEM 2.0 22 in. Medium Tool Box has patented auto-connect side latches, allowing for 1 hand operation. It also has 2-piece metal wire front latches for added durability when securing tools inside of the box. This tool box offers 20% more tool storage when used with DWST08165 and DWST08450 as part of a tower. It is IP65 rated for dust and water resistance and has a 110 lbs. load capacity. The tool box has a removable inner tray for optimal organization. The TOUGHSYSTEM 2.0 Tool Box is compatible with all TOUGHSYSTEM products. The TOUGHSYSTEM 2.0 Shallow Tool Tray DWST08110 (Included) is designed to add space within TOUGHSYSTEM 2.0 tool boxes and provide customizable organization to fit jobsite needs. Customize your tool storage with TOUGHSYSTEM 2.0 Deep Tool Tray DWST08120 (Included). Auto-connect side latches 2-piece metal wire front latches for added durability IP65 rated for dust and water resistance 110 lbs. load capacity Removeable inner tray Backwards compatible- works with any TOUGHSYSTEM product DWST08110 shallow and deep trays can be stacked on top of one another within your TOUGHSYSTEM products for customized storage Use tray-positioning latches to hang tray in top portion of TOUGHSYSTEM products without interfering with larger tools on the bottom Ability for self-customized plywood dividers and configurations using internal slots DWST08110 shallow tray DWST08120 shallow and deep trays can be stacked on top of one another within your TOUGHSYSTEM products for customized storage DWST08120 deep tray