Thank you for viewing from among many items! Diameter: Approximately 1.3 cm The button has a rounded curve around its edge, giving it a gentle impression. It has been stored at home. Thank you for your understanding, and we appreciate your consideration and purchase. I am also listing several other buttons. If you would like to purchase them together with other buttons I have listed, I will discount the total amount by 150 yen for each additional item. Please let me know your wishes in the comments (^^) Please note that if someone purchases an item before we finish our comment exchange, their purchase will take priority. Thank you for your understanding.