Tuba Mouthpiece Perantucci PT-50 Gold Plated Scratches: There are small scratches from use, such as scratches from inserting into the instrument and polishing. Plating: There are no areas where the plating is peeling off. Please check the photos for details. It will be wrapped in bubble wrap and shipped in a cardboard box. The following is product information from the Japan Tuba Center website. PT-50 Cup Characteristics: Diameter 33.0mm, conical and deep. Rim Characteristics: Width 7.5mm, sharp inside but flat rim. Throat Bore: 8.3mm The PT50 model is one of the largest mouthpieces with a conical cup. The cup is larger than average and the inside of the rim is sharp, allowing for clear articulation and tone. It is possible to play passages with a lot of movement, and the response is fast. It is intended for playing in the low register, but it also produces a good sound in the high register. For advanced players who prefer a large mouthpiece.