Features: 100% New Ignition Coil + CDI Unit + Regulator Rectifier + Premium Starter Solenoid. Made of high-quality plastic material, solid, high rigidity and collision resistance, very durable and safe to use. The ignition coil helps improve combustion efficiency and enhance electrical performance. CDI eliminates the rev limit that restricts your bike and resets the ignition advance curve for better acceleration. The rectifier regulator helps dissipate excess voltage, improve charging capacity, and prevent battery overcharging. Stable characteristics, high reliability. Suitable for 150cc 250cc PIT Quad Dirt Bike ATV Buggy. Specification: Condition: 100% New Material: Plastic Main Color: Black Quantity: 4pcs Package Weight: Approx. 514g / 18.1oz Compatibility: for 150cc 250cc PIT Quad Dirt Bike ATV Buggy Package Included: 1 x Ignition Coil 1 x CDI Unit 1 x Regulator Rectifier 1 x Starter Solenoid Note: 1. Easy to install, but professional installation is highly recommended. 2. The color of the actual items may vary slightly from the listing images due to different computer monitors, thanks for your understanding.