1、Universal Fit: Suitable for RC aircraft, airplane, glider fixed wing models, suitable for various brands of motors, universal installation size. 2、Utrathin Blade: The blade profile is carefully optimized and the blade profile is calculated by computer to make the blade thickness extremely thin. 3、High Aerodynamic Efficiency: RC propellers reduce the power absorption of the motor, thus ensuring high precision and high efficiency in use. 4、Premium Material: All propeller blades are made of carbon fiber, giving the blades a very high torsional rigidity. Lightweight, balanced and stable. 5、Dimensions: The length is 365mm, the adapter ring is 5mm, the small hole in the middle is 6mm, and the large hole in the middle is 9mm. Item Type: RC Plane Propellers Material: Carbon fiber, aluminum alloy Length: Approx. 350mm/13.78inAdapter Ring Inner Diameter: Approx. 5mm/0.2in Middle Small Hole Diameter: Approx. 6mm/0.24in Middle Big Hole Diameter: Approx. 9mm/0.35in Applicable: Fixed wing, suitable for various brands of motors 1 x RC Plane Propeller 1 x Adapter Ring