Use: Dajiang DJI Wizard 1/2 F330 chassis F450 F550 chassis rack; Multi-axis aircraft axis, six-axis, etc. Applicable blades: Recommended DJI9443 self-locking paddle! Or use a 8-12 inch models paddle; New Benefits: 1, the motor shaft using the integrated design, more effective protection of the motor shaft. 2, using a new type of paddle seat design, more stable, easier to disassemble. 3, using a 0.2mm core, lower load temperature efficiency.