This is a clip to hold the Arrow Antenna 2 meter elements vertically to reduce the footprint size when stored.
I recommend printing two of them, one to go just above the last 70m element, and another about half-way down the boom.
This was designed with PETG in mind, as a lot of people may just leave the antenna in a vehicle. PLA seems to be a looser fit, and I may need to upload a second file with slightly tighter dimensions.
The Arrow Antenna is a dual-band 2m/70cm (144MHz/440MHz) portable yagi antenna for activities such as working satellites, Summits on the Air, Parks on the Air, or other portable ham radio activities.
The author marked this model as their own original creation.