1、Thin Blade: The carbon fiber propeller carefully optimizes the blade outline and calculates the blade outline through a computer to make the blade thickness extremely thin 2、Aluminum Alloy: The folding propeller is made of carbon fiber and aluminum alloy, and the carbon fiber blade has a high torsional rigidity 3、Accurate Operation: The carbon fiber propeller reduces the power absorption of the motor, thus ensuring high accuracy and high efficiency operation during use 4、Easy Replaceable: Operation is simple and convenient, the carbon fiber propeller can be used without complicated process 5、Scope of Application: The aluminum propeller is suitable for fixed wing, suitable for common installation sizes of various brands of motors Item Type: Carbon Fiber Propeller Material: Carbon Fiber, Aluminum Alloy Product Length: Approx. 275mm /10.8in Adapter Circle Inner Diameter: Approx. 5mm / 0.2in The Diameter of the Small Hole in the Middle of the Folding Paddle: Approx. 6mm / 0.2in The Diameter of the Large Hole in the Middle of the Folding Paddle: Approx. 9mm / 0.4in Applicable To: Fixed Wing, Suitable for General Installation Size of Various Brands of Motors 1 x Carbon Fiber Propeller 1 x Adapter Circle