Tip openings are measured in either hundredths of a millimeter e. g. 1. 47mm or thousandths of an inch e. g. 046". The difference among a detailed facing and an open one may be an issue of 0. 009" or 0. 15mm.

Vandoren B44 Clarinet Mouthpiece W/ Rovner 1R Ligature Vandoren B44 Alto Clarinet Mouthpiece Vandoren CM322 B44 Eb Clarinet Mouthpiece Vandoren CM322 B44 Eb Clarinet Mouthpiece Vandoren CM322 B44 Eb Clarinet Mouthpiece Vandoren Bass Clarinet Mouthpiece - B44 B45 B40 B46 B50 BD5 Black Diamond - Used Vandoren Eb Alto Clarinet Mouthpiece Series B44 194744189821 OB New Vandoren Paris B44 Bass Clarinet Mouthpiece - Model # CM342 New Vandoren Paris B44 Mouthpiece for Eb Clarinet - Model # CM322 Vintage Vandoren B44 Bb Clarinet Mouthpiece - Lightly Used - from the 80's Vandoren B44 Alto Clarinet Mouthpiece Vandoren B44 Eb Clarinet Mouthpiece Vandoren B44 Bass Clarinet Mouthpiece Vandoren B44 Clarinet Mouthpiece - Lightly Used Vandoren Bass Clarinet Mouthpiece - B44 B45 B40 B46 B50 BD5 Black Diamond - Demo VANDOREN B44 BASS CLARINET MOUTHPIECE Vandoren B44 ALTO CLARINET MOUTHPIECE Vandoren B44 EB CLARINET MOUTHPIECE Vandoren Alto Clarinet Mouthpiece 5RV B44 B40 BD5 Black Diamond New Vandoren B44 Clarinet Mouthpiece Vandoren Bass Clarinet Mouthpiece - B44 B45 B40 B46 B50 BD5 Black Diamond - New Vandoren Eb Clarinet Mouthpiece - 5RV B44 B40 BD5 Black Diamond M30 - New NEW VANDOREN B44 Eb CLARINET MOUTHPEICE, ITEM #CM322