These are high-quality buttons used by designer brands and factory brands. They have a beautiful clear to brown marble color. They have a vintage-like finish, and are interesting buttons with individual differences and intentionally rough-hewn parts. Approximately 21mm, 13 pieces Approximately 16mm, 20 pieces There are individual differences due to the natural materials. I believe the material is buffalo horn, but please note that there is also the possibility of other materials such as nut buttons. Not only for replacing buttons on brand-name items, but also for adding a touch of luxury to Uniqlo and fast fashion items by changing the buttons. I hope someone will use them.