43 rim is functionally similar to Bach 2 3/4 C, 3, 3E, 3F, and Schilke 16 rims. Semi-round with a soft bite. 43/64", .672", 17.066mm.

Bob Reeves description of the #2 backbore: Our most versatile backbore, the 2 is more centered than a Bach #10 with excellent tone color and intonation. This backbore works well on all of our cups providing the player both efficiency and agility. The 2 backbore is generally not marked on our mouthpieces.

Rim is not screw on.

GOLD PLATED.

Insertion marks around shank.

Does not come with original box.