Universal filament tag that fits most filament spools. I have printed these in PETG because the material is slightly more flexible than PLA. They can also be made in PLA, but in that case, they might not fit all spools especially those with thicker walls.
This can be printed completely without support, and you don't need to use two different colors. The text is also clearly visible in single‑color PETG.
The author marked this model as their own original creation.