Description: This CDI is a DC one with 4 pins in the connector. Brand new 4-Pin performance ignition CDI unit. High quality, easy installation. Ignition energy intensity, powerful acceleration. For 90CC 100CC 110CC Motorcycle ATV Dirt Bike. Specification: Material: Plastic Size: 75×42×51 mm / 2.95×1.65×2 inch(L×W×H) Package Includes: 1 Piece CDI Box