DJI Phantom 4 Propeller Installation Bundle: Includes 2 Pairs of DJI 9450S Quick Release Propellers & DJI Part 51 9450S Propeller Installation Kit & eDigitalUSA Cleaning Kit Phantom 4 9450S Propellers are compatible with the DJI Phantom 4 Only! 2 clockwise and 2 counter-clockwise propellers. Each propeller weights 11g, diameter and screw pitch is 2412.7cm. Patented rotor lock mechanism ensures reliable locking and tool-free mounting and release at the same time. Fool-proof design for CW and CCW blades.