You have a Brand new Boyer Bransden, Micro-Power high power 12 Volt electronic ignition system. This kit is for 12 volt twin-cylinder BSA and Triumph motorcycles. With over 40 years behind them, made in England, Boyer is considered by most to be "the choice" when it comes to electronic ignition systems. This kit will work with both positive or negative earth. Dual output digital ignition coil. 2 X NGK suppressed plug caps. 1/4" BSF Bolt X 1'1/4". 1/4 UNF Bolt X 1'1/4. Terminals: 4 X Female spades, 1 X piggyback spade, 2 X Male bullets, 1 X Ring. His kit fits a wide range of....