Here are four mouthpieces that I no longer use, along with the replacement of my instrument. There are no boxes for any of them, so they will be wrapped in bubble wrap for shipping. No individual sales. I cannot answer questions about the period of use because I do not know it accurately. Model Numbers: DENIS WICK 5AL (Large Shank) Condition: Quite poor (plating is peeling, and there is rust in places) VINCENT BACH 5G (Large Shank) Condition: There are scratches and plating剥がれ on the shank. Otherwise, it's in good condition. DENIS WICK 4AM (Medium-Thin Shank) Condition: Almost unused, in beautiful condition. VINCENT BACH 5G (Small Shank) Condition: There are scratches on the shank.