I purchased this item on Mercari. I am selling it because I have no opportunity to use it. Size: Approximately 25mm * 26mm Please note that there may be slight variations in size due to individual measurements. Please be aware that the color may appear slightly different in the photos compared to the actual item due to the shooting environment and lighting in your room. This is a vintage item, so there may be some minor scratches or stains. We appreciate your understanding before making a purchase.