Feature: 1. Specially designed for Wltoys XK X450 remote control fixed wing plane model. 2. The powerful servo function is very helpful for enjoying the flight time and high quality. 3. Perfect design, obstacle‑free flight, is a great substitute for the old servo of the aircraft. 4. Exquisite craftsmanship and manufacturing ensure maximum durability, high performance. 5. Installation and disassembly are simple and convenient, reliable and durable in use. Specification: Item Type: Plane Servo Material: Plastic Color: Black Size: Approx. 30x23x11mm/1.2x0.9x0.4in Cable Length: Approx. 180mm/7.1in Weight: Approx. 13.0g/0.5oz Fit for Wltoys XK X450. Package List: 1 x Plane Servo1 x Plane Servo arm1 x Plane Servo Base3 x Screw Note: 1. Manual measurement, please allow 1‑3mm/0.04‑0.12in error, thank you.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. There will be differences in installation of servos with different grams, so the actual installation shall prevail.4. The accessories provided by the rudder of different grams will be different, please refer to the real object in the package