This G-key kena has a bend made from Peruvian bamboo, giving it a natural feel. It's a beloved instrument. Total length: 37.3cm Inner diameter: 18mm Outer diameter: 27mm Thickness: 4.5mm Mouthpiece width: 11mm Mouthpiece depth: 9mm Largest hole diameter: 12mm Weight: 90g 442hz, confirmed to play 3 octaves. ✳️Pino Kena is not sold on other sites.