The body is the same size as standard servos making for compact installation. The drum can be used either with or without the supplied drum shroud. Voltage Range: 4.8-6 Volts Torque 5.25kg on 4.8 Volts, 6.13kg on 6 Volts. Gears from heavy duty resin. Specification Turn: 4-4.5T Operating Voltage: 4.8-6v Speed(4.8v): 1.1sec/360 Speed(6.0v) 0.9sec/360 Torque(4.8v): 5.25kg Torque(6.0v): 6.13kg Running Current: 0.11~0.12A @ no load Working Current: 0.30~0.35A Stall Current: 0.86~1.05A Size: 40.5X20.2X38MM (1.59X0.80X1.50in) Weight: 55g (1.94oz) Gears: Heavy duty resin Connector wire length: JR 265mm (10.43in)