TOUGHSYSTEM 22 in. Small Tool BoxThis tool box is made with a durable 4 mm thick structural foam box wall gives robust structure to the stand alone units. There is an integrated water seal in every unit for protection of contents and long life for your equipment. This box fits into the metal carrier with adjustable foldable brackets which allows for tailored configuration. A central locking mechanism secures the box to the frame. Durable 4 mm thick structural foam box wall gives