2 Pairs Yuneec Propellers 2CW 2CCW Rotor Blade Sets A and B for Q500M Q500+ Q500 4K Quadcopter (Black) These rotor blades will bring a new sense of style to your drone. Bundle includes 2 A sets and 2 B sets, resulting in a two full sets of 4 individual propellers and o-rings for your Yuneec typhoon quadcopter drone. Works as a backup, a replacement, or an upgrade Their built in locking hub makes installation easy. Quadcopter drone not included.