Welcome to our store! 1. WATERPROOF: The RC airplane motor features a waterproof design, offering some corrosion protection and ensuring normal operation in rain. 2. 14-POLE 12-SLOT: The RC electric motor uses a 14-pole 12-slot high-torque motor design, high-purity copper coil, and temperature resistance of 180-200°C. 3. HIGH MAGNETIC CONDUCTIVITY: The outrunner motor boasts excellent performance, high magnetic conductivity, high silicon content, good insulation, and heat resistance. 4. LOW FRICTION: High-speed ABEC5 durable sealed bearings provide low friction, low noise, high precision, and long-lasting use. 5. SECONDARY OXIDATION: CNC machined billet, 6061T6 aluminum heatsink, secondary oxidation treatment for a refined look. Item Type: C3548 Brushless Motor Material: Aluminum Alloy, Copper Color: Black, Red Shaft Length: Approx. 20mm / 0.8in Shaft Diameter: Approx. 5mm / 0.2in Connector: Approx. 4mm / 0.16in male gold-plated head 1 x C3548 Brushless Motor 4 x Motor Mount Accessories 8 x Screws 1 x User Manual 100% Satisfaction Guaranteed: Our customers are our top priority. If you encounter any product issues after receiving your order, such as damage or incorrect quantity, please contact the seller immediately. We will do our best to provide you with satisfactory after-sales service. Thank you for shopping with us!