PCB antennas work great, but they can be tricky to mount in some airframes. This mount not only gives you a nice "V" configuration, but it also rotates one of the PCBs 90 degrees for the best coverage. Very nice mount. These are 3d printed black ABS. The bottom is 14x35mm. Uses heat shrink to hold the antennas in a lightweight mount. Heat shrink and 3M foam tape is included.