Editorial Review This is the Savox SV-0320 High Voltage Digital Servo. Features: High voltage capable on a budget DC MotorStrict quality control of plastic componentsTotally Green " from materials to production, these servos are environmentally friendly. Ideal in planes, 1/8 scale, and 1/10 scale cars and trucks. Suitable for use in boats and helisDimensions(mm): 40.7X20.2X37.0Weight(g): 46.0Speed(@6.0V sec/60): . 16Torque(@6.0V oz-in): 62.5Speed(@7.4V sec/60): . 13Torque(@7.4V oz-in): 83.3Gear: Industrial PlasticBearing: 1BBCase: Plastic25 Tooth Spline is compatible with Futaba servo hornsFrequency: 200-250hzPulse Width Frequency: 1520 Dimensions(mm): 40.7X20.2X37.0Weight(g): 46.0Speed(@6.0V sec/60): . 16Torque(@6.0V oz-in): 62.5Speed(@7.4V sec/60): . 13Torque(@7. V oz-in): 83.3Gear: Industrial PlasticBearing: 1BBCase: Plastic