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2pcs Quadcopter Multicopter Replacement Frame Arm For S500 S550 Red/Black/White/Blue
This item is the replacement arms for S500 and HMF S550 multicopter quadcopter. Also you can buy this arm to DIY your own multi-copter.
Strong and hard motor arms material (with built-in fiber glass tube)
Design with Dihedral angle, more stable, good for FPV
Light weight arms compare with DJI or HJ 450 frame