About carbon fiber propellers you should know !! Advantages: 1. The carbon fiber accessories produce fewer vibrations due to its rigidity, and they seem quieter than plastic propellers. 2. They are lighter and much more resistant than plastic in the event of a collision, but not indestructible on the other hand. 3. Light accessories mean less inertia, therefore faster engine speed change, and control seems more reactive. Disadvantages: 1. Due to various production processes, the surface of the carbon fiber propeller can have scratches during the production process, which is not as smooth as plastic propeller, 2. Carbon fiber accessories have a slightly shorter flight time than plastic accessories of the same size/not. If that bothers you, please don't buy! Characteristics: foldable, ultra solid and light higher tension, more fluid, reactive, low noise, quieter flight More energy saving flight Fast release, easy to install and remove The package includes: Helice 8743 in 2 -piece carbon fiber/Helic 8743 in 4 -piece carbon fiber Note: The drone is not included. < > Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.