Taygate 2 Pairs 9450 Self-tightening Carbon Fiber Propeller Blades for DJI Phantom 1, Phantom 2, and Phantom 3 Professional, Advanced, Standard Quadcopters Taygate high quality carbon fiber props are lighter and much stronger therefore increasing flying efficiency. No tools required. Self-tightening design, simply rotate the propellers by hand to attach or detach. These 9450 Self-tightening Carbon Fiber Propeller Fits all DJI Phantom 1, 2 & Phantom 3 series quadcopters. Composite hubs attach more firmly to your motors, improving reliability. Includes two pair of propellers: 2 clockwise and 2 counter-clockwise propellers.