Off-white, four-hole buttons, likely made of shell. They were originally on a stylish dress shirt (worn only twice). These are thick buttons, almost 4mm in thickness. The buttons have a beautiful, shimmering reflection, likely due to the shell material (though the exact material is unknown). They are recommended as materials for handmade accessories, etc. - Quantity: 13 - Color: Off-white - Shape: Four-hole Please note: The material is unknown, these were originally on a ready-made dress shirt, and there may be minor scratches or imperfections that have been overlooked. Thank you for your understanding.