Features: 1. Made of high quality plastic and copper material, tough, high rigidity and collision resistance, very durable and safe to use. 2. Ignition coil helps to improve combustion efficiency and strengthen electrical performance. 3. CDI eliminates rev-limit which restricts engine performance and resets the ignition advance curve for improved acceleration. 4. Regulator rectifier helps dissipate excess voltage, improve charging capability, and prevent overcharging the battery. 5. Stable characteristics, high reliability. Specification: Condition: Material: Plastic, Copper Color: Black Size: As shown in picture Package Weight: Approx. 528g / 18.6oz Fitment: Compatible with 50cc, 70cc, 90cc, 110cc, 125cc ATV, Quad, Dirt Bike, Scooter, Moped, and Go Kart. Ignition Coil fits 50cc, 70cc, 90cc, 110cc, 125cc ATVs, Scooters, Mopeds, Go Karts, and Dirt Bikes. CDI Box fits 50-125cc scooters, mopeds, ATVs, and go karts with 4-stroke engine and 5-pin plug. Regulator Rectifier fits 50cc to 300cc dirt bikes and ATVs with 4-pin plug. Starter Relay fits 50cc, 70cc, 90cc, 110cc, 125cc ATVs. Fits most Chinese brands including TaoTao, Buyang, SUNL, Roketa, Lifan, AIM-EX, Kazuma, Coolsports, etc. Package Included: 1 x Relay 1 x Regulator Rectifier 1 x CDI 1 x Ignition Coil Notes: 1. Easy to install; professional installation is recommended. 2. Please allow 0–1 inch error due to manual measurement. 3. The color of actual items may vary slightly from images due to screen differences.