The Gapper® - Optimize Your 3rd Slide Finger Ring Size:XS a French bead is an

a French bead is an advanced technique that matches the curl to the shape of a semi-cylindrical rim and is characterized by improved feedback of sound to the performer

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Seals permanently

The Standard Bach mouthpiece comes with a 27 throat or

The Gapper® - Optimize Your 3rd Slide Finger Ring Size:XS a French bead is anThe Gapper is designed to take up the gap between your finger and the 3rd valve slide ring. The size Gapper each player prefers depends on a variety of factors: brand of instrument, taper of finger, etc. However, most players find that, with Bach instruments, the size of Gapper corresponds with ring size in roughly the following way: XS 5; S 6; M 7; ML 8; L 9; XL 10.