YUCK! I was so disappointed when I received these! There's black ink on them and it looks horrible. If you have a bottle of fingernail polish remover, you should be able get most of the black ink off with a little scrubbing.
20 charms total.
But, my loss is your gain. These are discounted and what I have here is all I have.
The pentagram circle is 16.8mm (5/8 inches) in diameter.