BG BG Mouthpiece Patch A11L (LARGE 0.4mm Clear) AHEAD "PCOCC-A" is a single-crystal copper

"PCOCC-A" is a single-crystal copper PCOCC

and is designed to remove impurities down to the gas level

it blends in nicely with their powerful sound

It also has a speaker on/off switch

BG BG Mouthpiece Patch A11L (LARGE 0.4mm Clear) AHEAD "PCOCC-A" is a single-crystal copperIt prevents wear on the teeth and mouthpiece, reduces vibration transmitted to the teeth, leaves little adhesive residue, and is easy to replace. Before attaching the mouthpiece cushion, be sure to clean the surface of the mouthpiece. Model number: A11L Size: LARGE Thickness: 0. 4mm Color: ClearNumber of pieces: 6 piecesRecommended for alto tenor baritone rubber mouthpieces. *Package design, logo print, etc. may be changed without notice. Please be