YKS 5030 Carbon Fiber Propeller for Mini 250/ 280 Quadcopter Multi-rotor (2 Blade, Pack of 2 Pairs) Material: Carbon Fiber. High quality carbon fiber blades provide excellent and smooth using experience. Value Pack: Comes with 2 sets of props (2 CW Props & 2 CCW Props). Works with mini QAV250/280 quadcopter multi-rotor. Higher tension Each set bagged individually.and very easy to install. Each set bagged individually.