YKS 9443 Carbon Fiber Foldable Self-Tightening Propeller (3 Blade, Pack of 4) Material: Carbon Fiber. High quality carbon fiber blades provide excellent and smooth using experience. Value Pack: Comes with 4 sets of props (2 CW Props & 2 CCW Props). Fit for phantom 1/ FC40/ 2/ 2 vision/ 2 vision +. Higher tension and very easy to install. Each Set bagged individually.