Using these NewBeeDrone Azi propellers is easy. Just attach them to your drone that's compatible with a 0.8mm shaft. Make sure to match the CW and CCW propellers correctly as per your drone's requirements. When flying, you'll notice the accurate throttle control which gives you a smooth flight experience. For faster take - offs and more dynamic movements, enjoy the faster spool - up times. When it comes to cornering, the propellers' grip will help you stay on the best path. As for maintenance, regularly check for any signs of damage like cracks or chips. If you find any, replace the propeller right away. Keep them clean from dirt and debris to ensure optimal performance. And store them in a safe place when not in use to prevent any accidental damage.