This is a beginner-friendly G-pipe kena made of Karatake bamboo with smaller finger holes. Tuned to approximately A=442Hz. ・Size: Total length 37.5mm, mouthpiece inner diameter 18-19mm, same thickness 3mm, maximum finger hole diameter 9.5mm, mouthpiece width 10mm, same depth 7mm ・Surface finish: Lightly coated with camellia oil ・Weight: 43g For those who are just starting to learn the kena, we highly recommend starting with one that has smaller finger holes. Although this product is for beginners, you can definitely play "El Condor Pasa" with it. (However, a little practice is required) The surface of this material has the characteristic brown patterns (including short hair-like lines) of Karatake bamboo. This has no effect on the sound or lifespan. (See images 6 and 7, etc.) Instant purchase welcome.