Description This is a DC Mini Metal Gear Motor,ideal for making robots Light weight, high torque and low RPM Fine craftsmanship,durable,not easy to wear With excellent stall characteristics,can climb hills easily You can also easily mount a wheel on the motor's output shaft Specification Rated Voltage:DC 12V Speed:100 RPM Shaft Diameter:3mm Size:Diameter: 12 mm fuselage without shaft length: 26 mm Output axial length: 10 MM to 4.4 MM Name:DC Mini Metal Gear Motor Voltage range:6-12V Package include 1 x mini gear motor