Editorial Review SVXSC1257TG Standard Size Coreless Digital Servo by Savox As with all Savox servos, get the best for less! Dependability, reliability, price and performance; Savox fills the need for todays high performance model requirements.Specifications:Dimensions: 40.3x20.2x37.2mmWeight: 52.4gramsSpeed (milli sec at 6 volts)/Torque (oz): 0.07/361Bearings: Double BallCase: AluminumGears: Titanium and Aluminum