This flute is made to the same specifications as the Shishida and Maruyama shinobue flutes. It's easy to play and produces excellent high-pitched sounds. Most beginners can play the lower notes, but many struggle with the higher notes and the even higher "pii" sound. Many people are also unsure if the flute they are currently using is actually producing the correct sounds. This flute was created based on the opinions of instructors from various regions (easy to produce high notes, clear high-pitched sounds, and affordable). It's recommended that beginners, rather than buying an expensive flute first, focus on being able to produce high notes and high-pitched sounds, and then go to a shop to try out different flutes to find one that suits them. (Some flutes may look good but not produce clear high-pitched sounds). Also, it seems that learning after you can already produce some sounds leads to faster progress. To prioritize ease of playing, sound, resonance, and affordability, there may be scratches, natural shapes, natural patterns, and natural bends. A 10mm ball is placed in the image for reference of the hole size, etc. Thickness: Approximately 18mm at the mouthpiece. Length: Approximately 43.6 cm Mouthpiece size: Approximately 14mm Thickness: Slim (Thicker flutes have better low-frequency resonance, while thinner flutes produce better high-pitched sounds) Wall Thickness: 2 on a scale of 5 (Thicker walls produce better high-pitched sounds and resonance, while thinner walls are easier to play) Pitch: Approximately between a 6 and 7 hon (Japanese flute measurement) Range: Clear sound from the "tsutsune" (low register) to the 5th octave high-pitched sound. About Yaki-take (Burnt Bamboo): This is the best material for sound production among shinotake bamboo. Bamboo becomes harder and produces better sound when thoroughly burnt. However, there are few materials that meet the conditions, and it is difficult to process. It is also characterized by even better sound production when made naturally. Bamboo grows by competing for light. Therefore, the bamboo that wins the competition for light is the most suitable for flutes. (I have been researching physics utilizing the laws of nature for many years, so I can identify bamboo that meets the necessary conditions.) About Suke-nuri Finish (Transparent Lacquer Finish): Because no pigments are used in the lacquer, it is easier to produce sound. Also, by carving grooves inside and allowing the lacquer to soak in, it further enhances sound production and resonance. Please note: High notes and high-pitched sounds are very easy to produce. When playing strongly, make sure there are no people around. Especially be careful around young children, the elderly, people with disabilities, and those who are not feeling well. Regarding discounts: Due to being handmade, discounts are not possible.