This TPU printed part is made for the ImpulseRC Alien, Slammed Alien, 4.5 Alien frames. It holds your Axii antenna and Crossfire Micro (or FrSky) RX antenna tubes.
The mount is made for the UFL or MMCX Axii antenna and also has a hole inside that will fit your SMA connector if you choose to use a SMA Stubby Axii.
*RX tubes are not included but are available here.*