JX PDI-5509MG 8KG Large Torque Metal Gear Digital Servo For RC RobotName:JX PDI-5509MG 8KG Digital ServoWeight: 70gSize: 40.5x40.3x20mmGear: MetalVoltage: 4.8V-6VDead band: 2!#!amp!*!mu;s     1520!#!amp!*!mu;s \/ 330hz                              Operating Speed (4.8V): 0.15 sec\/60 Operating Speed (6V): 0.13 sec\/60 Stall Torque (4.8V): 8.65 kg.cm (120.15 oz\/in)Stall Torque (6V):  9.35 kg-cm (129.88 oz\/in)Dimensions: 40.5X20.2X38mm\/1.59X0.80X1.49 inWeight:  55.6 g (1.96oz)Connector Wire Length: JR  265 mm (10.43in)Bearing: 2BBPackage1x JX PDI-5509MG 8KG Digital Servo