The image shows a two-hole flat button, likely vintage, resembling an old Chinese coin. Type: Flat button with two holes. Material: Possibly metal, given the color and appearance. Design: Features a square center and markings similar to those found on Chinese coins. Use: Suitable for light to medium-weight fabrics. Attachment: Sewn onto fabric with the holes aligned parallel to the edge. Age: The design and patina suggest it may be an older or vintage item. Size: The image does not provide scale, but these buttons are typically small. Origin: The coin-like design hints at a possible Chinese origin or influence.