Material: Phyllostachys bambusoides (Japanese bamboo) Number of finger holes: 7 Key: Seven-tone, Doremi scale (Key: B) Finish: Exterior: Clear cashew lacquer; Interior: Red cashew lacquer Dimensions: Total length: Approximately 425mm; Mouthpiece outer diameter: Approximately 19.5mm; End outer diameter: Approximately 17.5mm We make and play traditional Japanese festival music and also craft shinobue flutes. We have created this shinobue tuned to the Doremi scale. You can enjoy playing Western-style music such as J-POP. Please consider it. Please note that due to the natural materials used, there may be some warping or blemishes.