This a simple holder for helmet torches on NSW RFS Trucks. Torches with a BR9 style attachment simply slide into the slot.

This can be mounted anywhere in the truck (we currently have ours on the B-pillars in the cab to make them easy to grab and also to easily see when they are missing).

I printed upright with tree supports for the circular holes (but probably unneeded).

The circular holes are 18mm x 3mm to perfectly fit these magnets https://www.bunnings.com.au/everhang-18mm-round-rare-earth-magnets-3-pack_p3690100

No glue is required - the magnets press in with some force and will not budge.