Features: 1. 100% brand new and high in quality. 2. Suitable for 15cxp engine air helicopters, 18cxp engine air planes, 1/8 or 1/10 scale engine cars, 1/5 motorcycle. 3. Easy and convenient to install, practical to use. 4. Made of quality materials, which are solid and durable for long term use. 5. With perfect workmanship and precise size. Specifications: Condition: 100% Brand New Item Type: RC Accessory Material: Plastic, Metal Color: Black Package Size: Approx. 22*11*5.5cm/8.66*4.33*2.17in Weight: Approx.465g/16.4oz Deceleration Ratio: 1:3.7 Battery: 7.2v 1800mAh/3000mAh (Not Included) Motor: RC 540 Fitment: For 15cxp engine air helicopters For 18cxp engine air planes For 1/8 or 1/10 scale engine cars For 1/5 motorcycle Package List: 1 * Power Starter (No Battery and Charger)