Heavy-duty design is IP65 rated with 250 lbs. Modular design is backwards compatible with most TOUGHSYSTEM. DWST08110 – Compatible with TOUGHSYSTEM 2.0 modules. The TOUGHSYSTEM 2.0 22 in. Small Tool Box (DWST08165) 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 DWST08300 and DWST08450 as part of a tower. It is IP65 rated for dust and water resistance and has a 110 lbs. The tool box contains 2 large organizer cups on the inside with removable dividers for optimal organization. The TOUGHSYSTEM 2.0 Tool Box is compatible with all TOUGHSYSTEM products. These tool boxes DWST08300 and DWST08450 (included) offer 20% more tool storage when used with DWST08165 and DWST08450 as part of a tower. 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. 20% larger volume than our DWST08130, DWST08203 or DWST08250. 2-piece metal wire front latches for added durability. IP65 rated for dust and water resistance. 2 large organizer cups with removable dividers. Backwards compatible- works with any TOUGHSYSTEM product. DWST08300 removeable inner tray. DWST08450 wide telescopic handle. DWST08450 removeable inner tray. DWST08110 shallow and deep trays can be stacked on top of 1 another within your TOUGHSYSTEM products for customized storage. DWST08110 use tray-positioning latches to hang tray in top portion of TOUGHSYSTEM products without interfering with larger tools on the bottom. DWST08110 ability for self-customized plywood dividers and configurations using internal slots.