Welcome to our store! 1、WATERPROOF: The RC airplane motor adopts a waterproof design, which has a certain anti-corrosion function and can work normally in the rain. 2、14 POLE 12 SLOT: The RC electric motor adopts a 14 pole 12 slot high torque motor design, high purity copper coil, temperature resistant 180 to 200 °C. 3、HIGH MAGNETIC CONDUCTIVITY: The outrunner motor adopts excellent performance, high magnetic conductivity, high silicon content, good insulation and heat resistance. 4、LOW FRICTION: High speed ABEC5, durable sealed bearings, low friction, low noise, high accuracy, long-lasting use. 5、SECONDARY OXIDATION: CNC machining billet, 6061t6 aluminum heat sink, secondary oxidation treatment, fine appearance. Item Type: C3548 Brushless Motor Material: Aluminum Alloy, Copper Color: Black, Red Shaft Length: Approx. 20mm / 0.8in Shaft Diameter: Approx. 5mm / 0.2in Connection: Approx. 4mm / 0.16in Male Gold Color Head 1 x C3548 Brushless Motor 4 x Motor Mount Accessories 8 x Screws 1 x User Manual Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best customer service.