DJI Phantom 4 9450S Quick Release Propellers (Pair) with Luckybird USB Reader Compatible with all DJI Phantom 4 Series Drones, Cludinging Phantom 4/ Phantom 4 Professional/ Phantom 4 Advanced. Two Pairs of DJI Original 9450S Propellers: 2 Clockwise and 2 Counter-clockwise Propellers. Basics: Each Propeller Weights 0.38ounce, Diameter and Screw Pitch 9.4''x5''. BUNDLE INCLUDES DJI Genuine 9450S Quick Release Propellers for Phantom 4 Series and Phantom 4 Series - Propeller Guard DJI Original Phantom 4 Series Quick Release Propellers, in Original DJI Package.