Achieve stable performance with the AIR-RING for clarinet. Thank you for viewing. This ring is made of the same grenadilla wood as the instrument. 【Effects】 Installed in the gap inside the barrel. Suppresses the disruption of airflow, providing stable breath control and improved ease of playing. Unlike metal, it uses the same grenadilla wood as the instrument, achieving a natural change. 【Features】 Made to order, so you can choose your preferred thickness. (1mm~, +-0.05mm) 【How to Use】 Insert into the inside of the barrel. Or Attach to the upper joint's protruding part with double-sided tape, etc.