its a clip that holds an altoids smalls tin. (Using for band aids, alcohol pads, lidocaine pads, and antibacterial ointment (pro tip melt the ends of a straw to get a container))

Could also be good for some small components. (or like screwdriver bits or screws)

I recommend printing at 15% infill and have only tried it in PLA, though, I would assume some stiff TPU could be better. Some supports needed on the bottom of the clip.

As far as I know this is the first altoids smalls "holster"