DJI Phantom 3 Spare Part 9 Self Tightening Propeller 9450 2x propeler Self-tightening design keeps the propellers securely to each motor Compatible with Phantom 3 Professional and Phantom 3 Advanced Durable plastic construction provides both lightness and rigidity Hightlights Self-tightening design keeps the propellers securely to each motor Compatible with Phantom 3 Professional and