Easy box attachment with auto-connect side latches, 20% larger volume than our DWST08130, DWST08203 or DWST08250, 2-piece metal wire front latches for increased durability, DWST08165, DWST08300 and DWST08450 - IP65 rated for dust and water resistance, 2 large organizer cups with removable dividers, Backwards compatibility with any TOUGHSYSTEM product, DWST08165 and DWST08300 - 110 lbs. load capacity, DWST08450 - 250 lbs. load capacity, Removable inner tray