These genuine mother of pearl saxophone key buttons are available in concave, convex, Keilwerth Style and Selmer Style.
The 8.4mm convex pearl is sized for the Bis Bb on Buescher True Tone and Aristocrat alto and soprano saxophones.
The 14.60 x 3.0mm convex pearl is sized for the left hand thumb rest on Buescher Alto saxophones.
The 17mm concave and convex pearls are sized for Conn baritone and bass saxophones.
Our Keilwerth style pearls are made of solid mother of pearl and Abalone. We machined the groove in the back to fit on the key with little or no modification. You can install these pearls with super glue or epoxy.