KOOKYE 1PCS Servo Motor Metal Gear 180 Degree Rotation w/ Servo Horn Set (Arm , X , Wheel, Star) for RC Car Robot Helicopter Airplane Model Go to amazon.com Related posts Top 8 recommendation mg995 metal gear servo FeatureSize 40 * 20 * 43mm, Net Weight 55g, the coupler diameter 5mm; DescriptionServo Motor