This is a set of size tags to slide onto circular needles. The hole fits the needle and the size is shown.
I've included a set of tags numbered 4 through 10. I print them in 2 colors so the numbers stand out.
You may edit the size on the tag in Fusion 360. If you don't have Fusion 360 or are uncomfortable editing this design, I have published a Tag Maker that uses OpenSCAD.
The author marked this model as their own original creation.