This was purchased at a button specialty store. I bought it several years ago, and the shop staff told me it's almost impossible to get now. The hole part of the button on the back was already removed when I bought it. The first photo of the front and back was taken in natural light, and the second photo was taken with a flash. It's recommended for people who do handicrafts. The ring in the sixth photo is not for sale, but it's the same product in a different size. I took the photo with it to give you a sense of the size.