Pixnor Apm2.6 MWC GPS Compass Antenna Folding Fixed Mount Bracket Holder for DJI Red Color: mainly red. Rod diameter: about 4mm, Height: about 16.2cm. CNC Aluminum GPS Folding Antenna Base Mount Holder Bracket Set. Suitable for most DJI WKM Quadcopter Multicopter. Adopt aluminum turning and CNC manufacturing for durable to use. Easy to install and use.