Purchased at Central Instruments at the end of August 2024. (Purchase price: 29,760 yen) Selected by Mr. Keisuke Jinbo. Used for less than six months. After that, I switched to another mouthpiece, so I have kept this one carefully. (Comes with box and drawstring bag) I love it very much and it's easy to play, so I hate to part with it, but I will probably be using a 180 for a while, so I would like to sell this to someone who needs it. I hope someone who will use it with care will consider purchasing it. I used it carefully with a patch, so I think it's in very good condition, but please understand that there may be some minor scratches due to use! I will pack it carefully and ship it promptly. The S90 170 has a small tip opening, a light and airy feel, a bright and even sound, and a balanced tone. It is also easy to control, allowing for delicate musical expression and a calm tone. This mouthpiece is also recommended for those who are concerned about the resistance of the mouthpiece, or who are having trouble with the sound starting or articulation because the tip opening is too wide. It is a professional selection, so you can be assured of its quality.