These are natural black, footed shell buttons. As the shells are a natural material, there may be some irregularities. The foot on the back is plastic. There may be some traces of adhesive or dirt from long-term storage. They will be wrapped in bubble wrap, but please understand that damage during shipping is unavoidable. The adhesive may come off due to strong stress during use. Please be careful. Anonymous shipping. If you purchase another item at the same time, you can get a 150 yen discount. Please comment before purchasing, and I will create a dedicated listing. I have other items for sale as well. Please search with #crescent釦素材.