Double flute membrane design, the timbre of double flute holes can be adjusted at will, which is more suitable for hand radian.Rotate the gear to adjust the tightness and change the vibration range of the flute membrane, so that different timbres can be adjusted by playing and breathing.The design of two flute holes makes the sound , the sound quality stable and the volume increase.Beam mouth design, internal vibration enhancement not only loud, also ensures the accuracy of tone.Multi-scene use, solo and accompaniment, easy to play for , and can accompany other musical instruments, such as guitar, ukulele and wind music.Name: double membrane Material: ABSColor: blueWeight: about 58 gramsSize: 122x29mmPackage Contents:1 x 5 x flute membrane1 x storage boxOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.