This is a Schilke Symphony D5.1. I used it for performances with a sense of weight. Please refrain from purchasing if you are looking for a perfect item or are overly concerned about minor details, as it has been stored at home for a long time. Regarding any concerns: Mouthpiece Top: ・There are scratches on the part that touches the lips. Mouthpiece Bottom: ・There is peeling of the plating on the shank due to insertion and removal. ・There is a slight crack at the end of the shank. Please purchase if you understand the above descriptions.