Item Type: Plastic Gear Servo Gear Material: Plastic Working Voltage: 4.5V~6V Working Torque: 0.9kg.cm Working Speed: 0.09s/60Degree Servo: Digital Servo Color: As Pictures Shown Weight: Approx. 13g / 0.5oz Package List 1 x Servo 4 x Plastic Servo Arm 3 x Screw 1. Please allow 1& 8209;3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1Plastic Materials: Plastic gear servo is made of plastic materials, it is very wear resistant, light in weight and not easy to be damaged. 2Good Performance: Mini plastic gear is shockproof, has fine workmanship, low noise, stable and reliable performance. 3Scope of Application: Micro digital servo is suitable for RC helicopter, flying airplane, glider, small robot and other models. 4Replacement Part: Mini digital servo is easy to install, you can replace the old or damaged parts to obtain higher strength. 5Working Voltage Torque and Speed: Working voltage is 4.5V to 6V, working torque is 0.9kg.cm, working speed is 0.09s per 60 degree.