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SCOPE OF APPLICATION: This propeller has a large diameter, suitable for medium-sized or medium-large boats, the motor should be 540 550 770 775 and other large motors! DIVERSIFIED SIZE OPTIONS: A wide range of propeller diameters from 36mm to 80mm are available to meet the needs of RC boat models of different sizes and performance requirements. CW & CCW ROTATION DIRECTION The propellers are labeled with CW (clockwise) and CCW (counterclockwise) rotation direction, which is crucial to ensure the balance of thrust and maneuvering of the RC boat model. 4MM BORE ADAPTATION: The propeller is designed with a 4MM center bore to fit most RC boat motor shafts.
