・Purchased as instructed by the doctor before surgery. ・Used several times during hospitalization, but no longer needed after discharge, so I am selling it. ・Two mouthpieces were included, but only one was used, so I will include the unused mouthpiece. ・Instruction manual and other accessories are all included. ・It is in good condition, but it has been used, so please refrain from purchasing if you are sensitive to this. ・Manufacturing date and expiration date: Manufacturing date: 2014.2. Expiration date: 2019.2.