Feature:1. Extremely Thin: The propeller is carefully optimized and the propeller is calculated by computer to make the blade thickness extremely thin.2. High Efficiency Operation: Reduce the power absorption of the motor, thus ensuring high accuracy and high efficiency operation in use.3. High Torsional Rigidity: All propeller blades are made of carbon fiber with very high torsional rigidity.4. Applicable Scene: Suitable for fixed wing, suitable for common installation size of various brands of motors.5. Perfect Replacement: Using sophisticated production techniques, this RC propeller is the perfect RC replacement accessory.Specification:Item Type: RC Folding PropellersMaterial: Carbon Fiber, Aluminum AlloyProduct Length: Approx. 235mm or 9.3inAdapter Ring Inner Diameter: Approx. 5mm or 0.2inMiddle Hole Diameter: Approx. 6mm or 0.24inMiddle Big Hole Diameter: Approx. 9mm or 0.4inApplicable To: Fixed Wing, Suitable for General Installation Size of Various Brands of Motors.Package List:1 xRC Folding Propeller1 x Adapter RingNote:1. Please allow 13mm error due to manual measurement. Make sure you don't mind before ordering2. Due to different shooting lights, as well as differences between monitors, the pictures may not reflect the actual color of the object. Please make sure you don't mind before ordering, thanks!