Rovner SS-1R Bb Clarinet Star Series Ligature for Rubber Mouthpiece - Nickel Exceptionally resonant and free-playing. Superior resonance helps ensure solid intonation Flexible, durable...almost indestructible Easy to install, even for inexperienced players Yields more playable reeds...an additional cost savings. Serious performance at an amazingly low price For Bb clarinet with rubber mouthpiece