A toolbox has a central section and at least one side section. The side sections are pivotally attached to the central section using a pin and slot arrangement which allows an eccentric path to be followed as the side sections pivot around the central section. This allows freedom of design of the dimensions of a central tray in the central section without obstructing pivoting of the side sections. A latch may be provided which slightly opens the side sections when it is in its unlatched position allowing a user to see that the sides are not properly latched.