Hobby-Ace 2 Pairs 9450 Plastic Metal Self-Tightening Propeller 9inch All Composite for DJI Phantom 3 Professional and Advanced plastic metal Under the same throttle. The mirror drag is small, the speed will be strengthened Large maneuver flight and wind resistance for the elves Compatibility Compatible with Phantom 3 Professional and Phantom 3 Advanced More quadcopter accessory products are provided by Hobby-Ace in Amazon.Bring your eyes into the sky and racing like a free bird, enjoy the ultimate first person view experience.