Axis length: 35mm; Gearbox: 21mm; Total length: 900mm; Diameter: 20mm; Axis diameter: 4mm; Reduction ratio: 1:45; Voltage: 6V; Void RMP: 220, 3V: 66rpm, 12V: 266rpm; Void current: 0.08A; Rated torque: 1.1kg; Power: 1.5W.