There are different combinations of parameters of the sine wave and with/without the inner ring (which makes for easier printing). The first number of the files indicates the number of waves (1 or 2), and the second the number of periods (repetitions). Note that in PrusaSlicer you can mix several of those, just changing the rotations (in increments of 360 / ( period * pieces ) ) and with all at the same coordinates, to add more waves (so you could mix two "12" rings to make a "22", for instance, although the model won't be exactly the same).
The "floating" or "pure" wave rings (with "noinside" in the file name) can be challenging to print; they will require supports and the thinner ones hardly will make it in a filament printer (but could be printed in a resin one). But they are also stackable, meaning that you can print several in different colors, or f.i. mix patterns with a same divider (like 2, 4, 6, etc.), as seen in the pictures.
Scaling won't keep the precise dimension of the outside wave, but this maybe doesn't matter too much; if you use the "cylinder" versions, remember that you can use a cylinder negative modifier in PrusaSlicer to avoid too thick a wall.
