This is a scale storage box that I created for my Traxxas TRX-4 RC model. It is designed to fit the original roof rack. - Dimensions: 91 x 62 x 44 mm - Mounting to the roof rack is done with cable ties - Lid and bottom part are held together by 5x5x5 millimeter magnets that are glued in. - Holes allow acces to the mounting screws of the roof rack. - The square hole in the bottom is for cabling since the box is designed to hold a battery and electronics. There are two variants of the box: An empty box and a box with side rails designed to mount a plate that holds switches (see photographs).