This is a prototype of my own cabochon eyes (12mm). There are fine air bubbles. I've already tried them on at the Mushimushi Cafe, but please note that I haven't tested them on other dolls. I used printing paper (glossy paper) and resin. This is my first time making cabochon eyes, and it's a handmade item, so there may be fine air bubbles, small pieces of dust or debris, and the possibility of the resin yellowing or the printing paper separating over time due to deterioration. Thank you for your understanding. I have a cat, so please refrain from purchasing if you are concerned.