QWinOut Z16/Z22 CNC Aluminum Folding Arm Tube Joint DIY for Dia 16mm 22mm Automatic Auto RC Quadcopter Hexacopter Multirotor

1 Piece Z16/Z22 CNC Aluminum Folding Arm Tube Joint DIY for Dia 16mm 22mm Automatic Auto RC Quadcopter Hexacopter Multirotor -----D16mm and D22MM Optional,please choose the one you request: Features: 1. To increase flying stability, a 5 Degree up-tilt angle is applied. 2. CNC Aluminum, suit for D16MM/D25mm tube arms. 3,This item suit for Auto Edition RC Quadcopter Hexacopter Multicopter 4,Easy to use!100% Brand New 5,With 8Pcs of M3*8 Screws for Center plate installing usage. Quantity:1 Piece Z16:                       Z22: