A. 4-pin CDI for most 50cc, 70cc, 90cc, and 110cc scooters, ATVs, and DY100. This DC-fired CDI can eliminate the rev-limit that restricts the bike and reset the ignition advance curve for improved acceleration. B. Made of durable materials, it is relatively durable and safe to use. C. This unit may give a 5 - 10 miles speed boost to the bike, and all that needs to be done is to plug it on. D. It is a suitable replacement for old or broken ones. Specifications: - Condition: in good condition and durable - Material: Metal, plastic - Connection Type: 4-pin - Color: As shown in the picture - Weight: Approximately 121g Package includes: - 1 * CDI Box Note: - Some models may require different parts. Please check the pictures and specifications for details before purchasing. - Please note that the new and old types of this product will be sent randomly. Make sure you are okay with this before placing an order.