I purchased this three years ago and used it for a year, after which I stored it in a case. While there are some scratches, it's in very good condition. Product Description: Custom mouthpiece finished with luxurious, thick gold plating. It adopts a new form to achieve a good balance with the instrument. It features the flexibility and smooth feel unique to gold plating, offering a smooth airflow and a delicate tone. * Rim Inner Diameter (mm): 17.08 * Throat Diameter (mm): 4.4 * A model with a smaller rim inner diameter of 31, suitable for all-around use. * The shallow U-cup is suitable for high ranges, and the deep V-cup smoothly supports low ranges. Thank you for viewing.