Signature series from Willie's Custom Brass, trusted by players both in Japan and abroad. NASOTA (Nasota) 5G 2023 α for large bore, silver finish. 2023 Renewal Model This mouthpiece was selected under the supervision of Mr. Hidetaka Arai. Because I practiced with it for many hours every day, the metal has softened, allowing for flexible movement. It produces clear sound evenly from p to ff. For me, this mouthpiece changed my life. I am now selling this mouthpiece because I will be challenging the more difficult NASOTA 2024. The original purchase price was around 50,000 yen. Please feel free to ask any questions.