Welcome to our store! Features: 1. Pure Copper Coil: The motor is made of a high-precision rotor and high-quality materials, ensuring high conductivity, wear resistance, and a long service life. It features a pure copper group with low resistance, low heat generation, low loss, stable operation, and sufficient power. 2. High-Quality Carbon Brush: With good commutation performance, long service life, excellent electrical and thermal conductivity, and good lubrication performance, the carbon brush ensures the motor's durability. The carbon brush's wear resistance directly affects the motor's lifespan. 3. High-Strength Magnetic Plate: The motor has a long lifespan, strong power, and greater torque. Its fully enclosed structure prevents dust from entering the motor, making it easy to maintain. Despite its small size, it effectively reduces weight, saves space, and ensures reliable use. 4. Full Metal Gear: The gearbox is made of high-quality metal gears, providing good impact resistance and durability, extending the gearbox's lifespan. 5. Wide Application: This motor is ideal for intelligent toy cars, robots, printers, balance cars, smart household appliances, camera rocker arms, and more. Specification: Rated Speed (RPM): 12V 20, 12V 30, 6V 50 (Optional) Dimensions: Outer Diameter: 25mm/0.98in Shaft Length: 12mm/0.47in Shaft Diameter: 4mm/0.16in Package List: 1 x Gear Motor with Encoder Please allow slight errors due to manual measurement and different monitors. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact the seller immediately. We will do our best to provide you with satisfactory customer service. Thank you for choosing our store. We hope this information helps you. Wishing you a happy life.