Youzone 4 Pairs 8pcs 9" 9450 Self-tightening Propeller Prop for DJI Phantom 3 Professional, Phantom 3 Advanced, 2 Vision, 2 Vision + Plus (4 Cw + 4 Ccw) 9450 Self-tightening Propeller Prop Suit for DJI Phantom 3, phantom 2 /phantom 2 vision/phantom2 vision+ Length: 9.4 x 5.0 inch Weight: about 23.87 g / pair Not Original DJI Phantom Product