Detail 01
Size 4
A fit code, not a horn size. It corresponds to a specific group of Rovner ligature models.

Independent shopping perspective
A replacement cap for Rovner ligatures, sold in Size 4. Buy it if you lost or cracked the cap that came with your ligature.

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
A fit code, not a horn size. It corresponds to a specific group of Rovner ligature models.
Detail 02
Check the model stamped on your ligature against this list before ordering. Other sizes cover different models.
Detail 03
The Light (L) and EDII lines use the same cap sizing, so upgrades within those lines carry over.
Detail 04
No ligature, no mouthpiece, no reed. It is the cover that slides over the mouthpiece.
Detail 05
Cheap enough to buy two — one on the horn, one in the case pocket.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Look at the model marking on your Rovner ligature. Size 4 covers 3R, 3RL, 4R, 4RL, 4RS, C-3R, C-3RL, L9, L10, 2R-EDII, 3R-EDII, 3RL-EDII, E-3R and E-3RL.
No. This is the cap on its own, for replacing one you lost or damaged.
No. The number matches your Rovner ligature model, not whether you play alto, tenor or clarinet.
Rovner makes caps in sizes 1, 2, 3, 4, 5, 7 and 8, each covering a different set of models. Find the size whose list includes yours.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.