Low noise propellers for Phantom Multicopter 1/2/3 Fast release version 9450 blades accessory screw K1KF noise reduction Description: brand new and high quality Characteristic: Helic with an improved self-blocker voltage for. The self-tightening design prevents vertical support from being detached during operation and potentially fly away. 9450 provides an additional thrust and better power efficiency than 9443. higher voltage, easy to install. The money is in the hourly and black direction in the opposite direction of the needles of a watch. is suitable for all phantom versions (for Phantom 1/2/2 vision +/3/FC40/E300). It is self-discovered. So you are not worrying about losing it when your drones fly propelles only, other demo accessories in the image is not included! Characteristics: Article type: Helices Material: Plastic Monkey size: 24x1.2x3.2cm/9.4x0.4x1.2in Color: White Quantity: 8 pieces/4 Pair Note: No package retail. Transition: 1cm = 10mm = 0.39 inches Please allow an error of 0-1cm due to manual measurement. Please make sure that it doesn't bother you before bidding. due to the difference between the different monitors, the image may not reflect the real color of the article. Thank you! The package includes: 8 x propellers