Detail 01
65 mm length
The shorter of the two Bb options here. Raises overall pitch slightly compared to 66 mm.

Independent shopping perspective
A 65 mm hardwood barrel for Bb clarinet. For players replacing a stock barrel or looking to sit slightly higher in pitch.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The shorter of the two Bb options here. Raises overall pitch slightly compared to 66 mm.
Detail 02
Bb and A horns take different barrels. Buying the wrong one leaves you with a part that won't seat properly.
Detail 03
Wood moves with humidity and cold. Warm it before playing and swab after every session.
Detail 04
An upgrade-tier part. Worth it on a decent horn, hard to justify on an entry plastic clarinet.
Detail 05
Tuning is set by length plus how far you pull out. No tuning ring or screw mechanism.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
One millimeter of length. The 65 mm sits slightly sharper overall. Pick based on whether you currently tune sharp or flat.
No. Get the A clarinet version — the two are sized differently.
It shifts overall pitch and can even out how far you pull at the joints. It won't fix individual notes caused by embouchure or reeds.
Swab after playing, avoid sudden temperature swings, and warm it in your hands before a cold-room session. Keep cork greased lightly.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.