This is a printable tag holder designed to display a number during horse shows, events, what so ever…
It can be attached to a halter or a saddle / saddle pad using paracord, string, or zip ties. The number is inserted in the form of a paper or laminated card (10,5 x 80 cm). In case used on photo, I used PVC document cover and insert paper with number in it.
Also thank you @Czech_printer for the consultation! :D
The author marked this model as their own original creation.