What is this?Widely used for DIY subjects, lifts, landing gear, mechanical arms, RC aircraft, model cars, model robots, electronic devices, electric doors, electric screwdrivers, etc.What will I get?Voltage: 12V; Speed: 300RPM; Output Shaft Diameter:3mm/0.12inch; Output Shaft Length: 11mm / 0.43 inch;Motor Length: 15mm/0.59inch; Total size: 36 x 12 x 10mm/1.4 x 0.47 x 0.39inch(LxWxH);Motor model: N20; Shaft type:D type; Pack of 2pcs MotorIs there any advantages of the product?Made of copper and steel. It has good wear resistance, high-temperature resistance, and vibration resistance, good reliability, fine craftsmanship, and durableHow to use it?With good stall characteristics, it can climb hills easily. You can also easily mount a wheel on the output shaft of motor.What should I notice?Please try to avoid block or overload of the reduction motor, otherwise, the gear will collapse and wear.