1. Brand new 2. Made of high-quality materials, more sturdy and durable 3. Easy to use and easy to replace 4. Suitable for Wltoys XK X450 remote control aircraft 5. Tool supplies: Assembly category 6. Upgrade parts/accessories: Receiver main board 7. Remote control parts and accessories: Servo accessories 8. Use: Vehicles and remote control toys 9. Technical parameter: Value is 2 10. Remote control peripherals/devices: Receiver 11. Applicable vehicle models: Cars 12. Four-wheel drive attribute: Assembly 13. Wheelbase: Screws 14. Color: Green 15. Material: Composite material 16. Package contents: - 1 receiver main board 17. Only the above package contents are included, and other products are not included. 18. Note: Light shooting and different monitors may cause the color of the items in the picture to vary slightly from the actual object. The allowable measurement error is ±1 - 3 cm.