Black 4-hole buttons, approximately 28mm in diameter, set of 10. - Quantity: 10 pieces - Color: Black - Number of holes: 4 holes - Diameter: Approximately 2.8cm Thank you for viewing. This is a set of 10 buttons. The color appearance varies for each button. How about using them for coats or jackets? Although they are unused, they have been stored at home. There may be some oversights. Thank you for your understanding. I have other items for sale as well. Please take a look if you'd like.