Very well made and the transparent look is amazing.
I bought them to fit Goldo pots and they had a little play in the pots shaft.
So, here is a neat trick:
Apply a small layer of superglue in the corregated part of the knob ( NEVER in the pot ), allow it to dry and then try it on the pot. If it still feels loose, apply another small layer of superglue, and so on until the knob has a comfortably snug feel when inserting it over the pot shaft.
As for being versatile, because they are transparent, you can paint them underneath to match the color of your guitar or your custom paint.
I'm definetly buying them again.