2 Pairs 9450 Self-tightening Propeller Blades For DJI Phantom 1, Phantom 2, and Phantom 3 Series Quadcopters - Color Blue 9450 Self-tightening Propellers (with a composite hub) Fits all DJI Phantom 1, 2 & Phantom 3 series quadcopters Self-tightening design keeps the propellers securely to each motor Made of high quality PC plastic, ensures flexibility and wing stability Includes two pairs of propellers: 2 clockwise and 2 counter-clockwise propellers