uxcell 6V 200RPM Electric Speed Reducing DC Geared Motor for DIY Toys Voltage: DC 3V; Speed: 15RPM; Torque: 0.4kg.cm; Current: 0.15A Shaft Type: D Shape; Shaft Dia.: 3mm; Shaft Length: 9.3mm Motor Size: 16 x 12 x 9.9mm (L*W*H); Gear Size: 8.9x 11.9 x 9.9mm (L*W*H); Total Length: 35.9mm With fine craftsmanship, durable, not easy to wear, ideal for making robots. With excellent stall characteristics, it can climb hills easily. You can also easily mount a wheel on the output shaft of motor.