Finally broke a prop. So now I have a 9443 vs 9450 question. | DJI Phantom Drone Forum
DJI Self-Tightening Props for E300 Tuned Propulsion System (Pair, White)
DJI Phantom 3 Self-tightening Propellers, Self-tightening design avoids prop becoming loose during operation and potentially flying away By Brand DJI - Walmart.com
9450 Self-Tightening Propeller Set for Phantom 3 — Beach Camera
Amazon.com: DJI Original 9'' CW+CCW Props 9450 Self-tightening Propeller 4 Pcs for Phantom 3 Professional / Advanced / Standard Quadcopter : Toys & Games