Features:Full CNC Machined Alloy CaseHigh Voltage 6.0 - 8.4VUltra High Torque Coreless MotorSteel Gears with 25T SplineWater ResistantBall RacedSpecifications:Dimensions: (LxWxH) 40x20x37mmWeight: 73gSpeed @ 6.0V - 0.12 sec / 60 degTorque @ 6.0V - 37.5kg / 520oz-inSpeed @ 8.4V - 0.10 sec / 60 degTorque @ 8.4V - 46.9kg / 650oz-in