I'm not sure of the details, but I believe this is a promotional item from Takeda Pharmaceutical. Diameter: 3.4 cm. Unused, but there are some minor scratches on the surface from storage. I plan to ship via regular mail. There will be no tracking number. It may take up to a week to arrive. If you pay at a convenience store/ATM, please send me a message after your purchase. Please also read my profile and the following notes. 【Purchase Priority】I will prioritize the first person to purchase, regardless of the circumstances. 【Cancellation】If payment is not received within 4 days of purchase, the order will be cancelled. 【Used Items】I have checked for stains, scratches, names written on the item, and cut tags, but I may overlook something. Please understand this. 【Condition】Colors and textures may not be accurately conveyed in the images, so please feel free to ask any questions. Also, the description of usage is based solely on my subjective opinion. 【Packaging】I mainly use recycled materials, so please excuse any unsightly aspects. Also, packaging may be simplified due to shipping costs. 【Shipping】I am not responsible for any shipping accidents. I plan to use the cheapest method available, but please contact me if you have any preferences.