Low tension wires: 8 inch long - 1 male and 1 female connector (power goes to the black/white line male terminal. points/condenser wire goes to the blue female terminal) Primary Windings: 4.6 ohms and- 10% (just like the coil) Coils Replace Part Numbers: 30510-333-013, 30520-333-013 (CB350F, CB400F) 30501-323-003, 30502-323-003 (CB500, CB550 up to '76) 30501-404-000, 30502-404-000 (CB550 '77-'78) Fits for : CB350F Four - 1972-1974 CB400F Super Sport - 1975-1977 CB500K Four - 1971-1973 CB550F Super Sport - 1975-1977 CB550K Four - 1974-1978 Colour:Black Material:ABS Size:Spark plug wires length17 inch Mounting holes: 102mm (4 inch) apart Package Contents: 2x Ignition Coils 4x Spark Plug Caps Installation Tip: Fan out the spark plug wires before twisting on the caps that way you make a better connection. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin