Hello Maker H675 ABB Industrial Robot Mechanical Arm 100% Alloy Six degrees of freedom Robot Arm Rack with 6 Servos rc drone 5* round head hexagonal M3*25

5* round head hexagonal M3*25 4

It could be used for DJI F450 F550 SK480

Fast Experience  - Built-in Micro USB connector for a much more easier and faster firmware upgrade

H/L speed mode and 3D eversion function for you to experience cool flying play

5660 - 5700 MHz SRRC: 2412 - 2472 MHz

Hello Maker H675 ABB Industrial Robot Mechanical Arm 100% Alloy Six degrees of freedom Robot Arm Rack with 6 Servos rc drone 5* round head hexagonal M3*251972180262862533 Recommend Robotic ARM Industrial Robot 3D Rotate Mechanical Arm Alloy Manipulator 6 Dof Robot Arm Rack with 996 Servos + 1 Alloy Gripper + Controller US $ 169. 00 piece Industrial Robot Arm Bionic Robot Hands Large Torque Servo Fingers Self movement Mechanical Hand with Control Panel US $ 259. 00 piece Arduino Programming Bionic Spider Robot 6 Foots Robot Large Torque Servo with Ps2 Controller US $ 259. 00 piece irb460 4 Axis