Adjustable Level This flute head joint cork is used to adjust the level of articulation. Great alternative for flute repair parts. Used to adjust the pitch of the articulation, flute corks a long service life. , flute cork Great replacement, very good flute replacement accessory. Excellent quality and reasonable price, you deserve it. Adjust the articulation: This flute reflector accessory kit is used to adjust the articulation of the flute, improve the sound quality of the flute, improve the sound of the flute, and make your playing better. Used for: Used to adjust the pitch of pronunciation. Colour:Silver + wood color Material:metal+cork Package Contents: 1 x screw cap 1 x cork 1 x reflective plate Only 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.