They measure 12mm.

Made with quality USA made surgical steel posts.
Plastic.
 
Sealed with Resin. Stud backs have been attached wit resin for extra strength.
These are 100% handmade. They are printed & i cut every piece out by hand.
 
 
Artwork is purchased from indapendant artists or designed by myself.
*We do not use mass produced planar resin from china*