Features: Ignition Coil+Spark Plug+AC-CDI box For GY6 50cc-150cc 4-Stroke Engines Scooters, ATVs, Go Karts, Mopeds. The main function: the coil can improve combustion efficiency and enhance electrical performance. High quality: made of plastic coils and CDI and ceramics spark plugs, this spark plug is very durable. Additional effects: CDI has a 6-pin connector and AC-transmission system. Easy to install, the coil can improve combustion efficiency and enhance electrical performance. Specifications: Material:ABS Package Includes: 1x Ignition coil 1x CDI box 1x Spark plug note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.