Nastent Classic for snoring prevention. Left, 140mm, soft, 3 boxes, 21 pieces total. Please refrain from individual sales or price negotiations. Expiration dates are as follows: October 2025: 3 boxes Please understand this before purchasing. There may be some minor scratches on the boxes. If you are looking for a perfect item, please refrain from purchasing. Also, wrapping with bubble wrap will exceed 3cm in thickness and will not be eligible for Yu-Packet. Therefore, it will be shipped in a waterproof plastic bag. As a result, there is a possibility of box damage during transportation. In that case, please contact the post office regarding the shipping accident. Please understand the above points before purchasing. Thank you very much.