DEWALT DWST08204 Tough System Case, Extra Large Robust structural foam box with huge interior space Inner vertical storage for hand tools and removable tray for hand tools Side latches allow stacking modules one on top of the other Side handles enable carrying or assembling products on ToughSystem metal Carrier IP65 Integrated water seal for protection of content from the environment and anti-rust metal latches Durable 4mm thick structural foam box wall gives robust structure to the stand alone units Integrated water seal in every unit for protection of contents and long life for your equipment Metal carrier with adjustable foldable brackets allow tailored configuration Central locking mechanism secures the box to the frame Removable vertical compartments for convenient hand tool storage