This item was purchased by the club three years ago. There are no dents, noticeable scratches, or stains. This is a used item, so I will only sell it to those who understand. After cleaning and disinfecting, I will package and ship it. Inner cup diameter: 18.5mm Bore size: 6.5mm Silver plated V cup This is a mouthpiece recommended for beginners. It is very easy to produce low notes, and high notes come out beautifully.