A customizable knitting needle gauge. You can edit the list of needle sizes and the disc will resize to fit. The font size and disc thickness can be changed, By default the holes are 0.2 mm bigger than the needles, which is also customizable.

CHANGE: crankylinuxuser made the text as a positive form that comes out of the disk, rather than being a void of the text in the object. I believe this makes it cleaner to see and print.