The VIM Tools Large Interlocking Storage Case with Compartment Inserts, No. SCL, contains 15 small containers and five large containers inside to store bits, fasteners, repair kits, and many other things that need organizing. Internal compartments seal to inside of lid, keeping everything in its designated spot, even if the container is flipped upside down, the company says. With a ridged lid and bottom, multiple cases can be stored on top of each other and stay in place. Additionally, the internal compartments are removable, and the case is made of heavy-duty polymer, making it shock and crack resistant.