Replacement servo with metal gear upgrade designed for Wltoys XK X450 RC airplane. Great help to enjoy flying funny! Features: -Suit for Wltoys XK X450 RC airplane. -High quality, ensure a long service life. -Upgrade perfect design, allowing the airplane do various rotation in the air, flying without barrier. -Powerful servo with metal gear, great help to the enjoy the flying time. -We are glad to provide the best product and the best services to our customers. Any question, please contact us without hesitation. Specifications: Item: Servo Main Material: Plastic+metal Servo Size: 3*2.5*1.1cm Suitable for: Wltoys XK X450 RC airplane Package information: Package size: 8*5*2cm Package weight: 10g Plastic Packaging Package List: 1* Servo