Designed with the AS-2518-18/49 rectifier board in mind. If you are installing a new board or just tired of looking at your hacked up electrical taped collection of miscolored wires then this is the kit for you! The sizes and colors are correct and the length has an extra inch per wire to accommodate any brand of board that may be installed in your classic solid state machine. Perfect for board swaps and new machine builds. Comes unassembled to accommodate different manufacturer's versions of this board. Wires, ten zip ties and wiring chart included. Transformer and rectifier board shown for instructional use and are NOT included.