1Specially designed for Wltoys XK X450 remote control fixed wing plane model. 2The powerful servo function is very helpful for enjoying the flight time and high quality. 3Perfect design, obstaclefree flight, is a great substitute for the old servo of the aircraft. 4Exquisite craftsmanship and manufacturing ensure maximum durability, high performance. 5Installation and disassembly are simple and convenient, reliable and durable in use. Item Type:Plane ServoMaterial:PlasticColor: BlackSize: Approx.30x23x11mm/1.2x0.9x0.4inCable Length: Approx.180mm/7.1inWeight: Approx. 13.0g/0.5ozFit for Wltoys XK X450 Package List: 1 xPlane Servo1 xPlane Servo arm1 xPlane Servo Base3 x Screw Notes: 1. Manual measurement, please allow 13mm/0.040.12in 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