I'm currently cleaning up my parents' house. I'm not sure exactly how to use these nails, but they were among my grandmother's belongings, so I think they were prepared for use in the tea room. If anyone is looking for them, would you be interested? The tatami tray in the photo is not included in the sale. Also, please refrain from inquiries about selling individual items. Please make your decision based on the photos and only purchase if you understand. Thank you.