The Thumbport is designed to help relieve the strain and stress of playing the instrument. Simply clip it onto the flute tube around the F key, utilizing the only finger that does not operate any key--the right thumb, it provides more freedom and the potential to correct awkward holding of a flute.
Some piccolos have kickers in the way (such as Bulgheroni, Ph. Hammig...etc.). One can cut away one or both sides of the Thumbport as needed:
VALMISTAJA | Thumbport |
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