I am selling this item because I purchased the wrong size. I only opened the package to check the size, so it is unused. I hope someone who needs it will use it. Size: Approximately 2 cm in diameter. Purchased on Amazon for 555 yen. Please purchase only if you understand that this item has been stored at home. *Price reduced from 500 yen to 400 yen on June 11, 2025. I'm sorry, but I cannot offer any further discounts.