The DEWALT DWST08250 Tough System DS450 Mobile storage is a Mobile toolbox, compatible with all existing modules of the Tough System storage family. The stackable base box is made with durable 7? wheels and a top handle for carrying, this unit brings new meaning to portability and mobility. The patented design of the lid opens with a pull-back handle and a non-detachable lid enables full accessibility and maximum storage volume. A removable tray allows for Quick access to tools that are most used. The metal-plastic telescopic handle and strong handle grip provides great durability for all job sites. This DS450 Mobile storage features an IP65 rated dust and water seal, Rust-resistant metal latches and internal organization.