This is our new low cost, but extremely DC Gear Motor.Specification:No-load Speed: 5RPM at 12 Volts;kg.cm: 15Power: 3W;No-load Current: 0.1A;Load Current: 0.25A;D Shaft Size: 15.3mm x 5.9mm/0.6 x 0.23 inches (L*D);Gearbox Size: 31mm x 36.8mm/ 1.22 x 1.46 inches (L*D);Motor Size: 33mm x 35.3mm/1.30 x 1.39 inches (L*D);Mounting Hole Size: M3 (not included).