Barrel for clarinet, solid connection and improved resonance.
This is the Clark W Fobes Cocobolo Rubber-Lined Clarinet Barrel Regular for Clarinet - The barrel joint is an extremely important aspect of the overall acoustical design of the clarinet. It has a profund affect on modal ratios (pitch) and tonal coloration. We can think of the barrel as the "interface" between clarinet and mouthpiece.
FOBES barrels feature an inverted cone style bore and are designed to work in conjunction with FOBES mouthpieces which have a medium large Kaspar style bore. Improvements you can expect with a FOBES barrel are:
Closer twelfth intervals
Slightly lowered pitch in the tones of the left hand, upper register
Focused throat tones
Increased resonance and response
All FOBES barrels are made with NO RINGS for better resonance and warmth.