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.Remarks:1. This is a replacement for the previous product 1345 Self-tightening Props.2. If you are replacing your 1345 Self-tightening Props, they need to be mounted on the Quick Release Rotor Adapters (sold separately).3. If your DJI Inspire 1 comes with the 1345S quick release propellers originally, the quick release rotor adapters are not required.For installation, please find the Quick Start Guide or refer to the demonstration video.