Phantom 2 Propellers Topliok Self-tightening Propeller 9450 Props for DJI Phantom 2 Vision FPV 1. The propeller for quadcopter ,made of top quality and durable materials. 2.Self-tightening carbon fiber balanced propeller 9450 for DJI Phantom 1/2/Vision Quadcopter 3.Built-in lock nut, hand driven installation. Easy to instal propeller phantom 2, just put them on and fly. 4.The dji phantom 2 propellers , lighter and stronger than other props, can increase the flying efficiency. 5.Size:9.4x4.3 Package includes: 2 pairs propeller for drone