APPLICATION RANGE: This motor is designed for 1/8, 1/10, 1/12 model car or ship, 3600KV and 4500KV optional. 4 POLES DESIGN: 4 poles design ensures high torque & high efficiency, offers the ship or car much faster acceleration response and stable output of power. GOOD HEAT DISSIPATION: Advanced processing technology ensures good heat dissipation and extends the service life of the motor. LOW NOISE: The RC brushless motor with low noise, high speed, showing better performance. SOLID SHELL: RC boat brushless motor is made of metal material, the motor with shell, advanced rotor structure, high-quality shaft, high-precision bearings for high durability and smoothness.