These are our smaller sidebox and underbody toolboxes. You can use these alone, or use them together with our other toolboxes and tanks to create the perfect combination of tool storage and auxiliary fuel containment. The sideboxes can be placed directly on a flatbed or they can be configured to mount on a bedrail. Our bedrail mounting systems feature legs to help hold the weight of the toolbox. Follow the SB5 link to find an illustration of the bedrail mounting system. Similarly, the underbody boxes can be mounted underneath a flatbed or on top of the bed. Like all of our products, the SB-Series products are made from 12 gauge steel and are coated with a Marvel bed liner coating.