This is our new low cost, but extremely DC Gear Motor.Specification:No-load Speed: 160RPM at 12 Volts;kg.cm: 1.5Power: 7.2W;No-load Current: 0.15A;Load Current: 0.6A;Reduction rate: 1: 13.5D Shaft Size: 12mm x 4mm/0.47 x 0.16 inches (L*D);Gearbox Size: 20mm x 28mm/ 0.79 x 1.1 inches (L*D);Motor Size: 37mm x 29mm/1.46 x 1.14 inches (L*D);