Keychron Black Transparent OSA keycaps, used. I attached them once and used them for about a day. I don't think there are any noticeable scratches, but since they have been used once, please forgive any minor scratches. These are the products: Please check the following site for detailed information. https://superkopek.jp/collections/keycaps/products/keychron-blacktranparent-osa-keycapset Thank you.