11. Tuned G major - 440 Hz - G4-G6 - Tunable (each pipe has a plastic cork that you can push to change the tuning). 22. Package Included: 15 pipes pan flute, soft Bag, and cleaning Rod Cloth. Dimensions: 9 (L) x 8 1/2(W) (approx) 33. Material: Selected Natural Bamboo (color of bamboo may slightly vary) 44. Excellent choice for beginners and students. 55. Each pipe has a tight cork that can be manually calibrated. However, it will be tested and tuned before shipment.Pan flute is a Chinese traditional musical instrument that is combined with several pipes of the same material by using bundling, bonding, or frame fixed to integrate them together. The internal tube is blocked with beeswax or cork. When playing, airflow goes over the top and impacts the other side to shake the inner tube wall, and then make music. Due to beeswax and corks different position, the periods of airflow vibration in the tube can be different, so the different vibration frequency of airflow makes different tones.1x Pan flute1x Soft Bag1x Cleaning Rod Random Color1x Cleaning ClothRandom Color