This is a lightweight metal (maybe tin) made to look like a bottle cap. It has a button style of pin on the back which is why I listed it as a button. On the front it has a picture of Dory and Marlin. They appear to be smiling while swimming. The picture seems to have an epoxy or resin over it. Very cute series. They were available at stores, I believe in Japan, on a large card that had each pin individualy wrapped in a small bags. I think there were 96 to a card. I don't remember for sure. I have 11 different buttons. I am not sure how many total different there are. There isn't a copyright on it. It is about 1 1/4 inch across.