d'addario reserve bb clarinet mouthpiece, x0 d’addario woodwinds reserve bb clarinet mouthpiece 1.0 mm "inspired by the most prized vintage mouthpieces of the 1920s, the reserve harnesses modern technology, pioneered by d'addario, to recreate the incomparable craftsmanship found in these legendary works of art. milled, not molded, from hard rubber for a higher level of consistency, every reserve mouthpiece is machined to the strictest tolerances. but the true beauty of reserve lies beyond its polished angles, glorious curves and proprietary materials to something far more remarkable - its sound. it is the first mouthpiece of its kind, in that it is precision-milled, a virtue of modern technology, and modeled after vintage designs, a blessing of time-hewn craftsmanship. the reserve is the collaborative result of top players, craftsmen and engineers all putting their heads together to create a mouthpiece that will permit an artist to articulate his or her musical vision."