Servo motor S3003 x 2 pieces and 15 servo horns included. Please purchase only if you agree that returns are not possible. Type: Hobby standard servo (for RC) / Analog control method Operating Voltage: Approx. 4.8 - 6.0V (typical range for RC servos) Torque: 4.8V: Approx. 44 oz·in / 3.2 kg·cm 6.0V: Approx. 57 oz·in / 4.1 kg·cm Speed: 4.8V: Approx. 0.23 sec/60° 6.0V: Approx. 0.19 sec/60° Weight: Approx. 37g Dimensions: 40 x 20 x 36 mm (length x width x height) Gears/Bearings: Standard plastic gear/bushing type Applications: A standard servo used in radio-controlled airplanes, RC cars, robots, etc. Can also be controlled with Arduino.