Willie's Custom Brass NASOTA565α GP This is a mouthpiece based on the model of euphonium player Hidetaka Arai. It was a sub mouthpiece, so it has been used very little and is in beautiful condition. With an extremely flat yet not overly sharp rim and a solistic tone, this mouthpiece breathes new life into the euphonium. The "NASOTA 565 α" uses "α material" that has been specially treated, providing a richer resonance, a mellow sound onset, and the ability to play at fff without cracking. Model: NASOTA565α Rim Inner Diameter: 25.65 Throat Diameter: 7.22 Shank: L Material: α material Retail Price: ¥51,700