DJI 1345s Quick Release Propellers feature a new locking mechanism that prevents your propellers from becoming loose during flight. These propellers are compatible with all Inspire 1 units and are perfectly suited to the motor deceleration functions native to your Inspire 1. A set of two propellers. Includes one clockwise replacement propeller and one counter-clockwise replacement propeller. 1345 Carbon Fiber Reinforced Quick Release Rotor can be used with E800 tuned propulsion system, Inspire 1 and Matrice 100 platform.