2 Pairs Genuine DJI 9450 Self-tightening Propellers for Phantom 3 Pro, Adv (Gold Stripes) 9450 Self-tightening Propellers (with a composite hub) Recommended by DJI to be used on Phantom 3/Phantom 2 series or Flame Wheel series platforms Can be used with E310/E305/E300 tuned propulsion systems. These are with COMPOSITE HUB so they can be used on the Phantom 3 Includes two pair of propellers: 2 clockwise and 2 counter-clockwise propellers