Top Race&reg; TR-Q511 Drone Quadcopter Rotor Blades Spare Blades (2 Sets) Top Race TR-Q511 Drone Quadcopter Rotor Blades Spare Blades replacement blades (2 Sets) Includes 2 sets of 4 Blades total of 8 Blades Easy to replace get back in the air within minutes Can also be used for similar models like Syma X5 or X5c etc. Enjoy Your Flight!