This set of (3) replacement O-Rings fits Backun Signature Bass Clarinet Mouthpieces. The O-Rings are self-lubricating, which reduces friction when assembling the clarinet.
*Tip from Hawkins: To re-lubricate signature mouthpiece o-rings, use a drop of almond oil or a tiny bit of cork grease on the inner wall of the barrel top tenon to improve ease of use.
Measurements:
26.00mm x 3.00mm
Note: The O-Rings that come with Backun Signature Series Bass Clarinet Mouthpieces are designed to fit a majority of bass clarinet necks.