The Odyssey Essentials Bb Clarinet Mouthpiece Kit includes mouthpiece ligature and cap – everything a budding clarinettist needs to get going. With 0.45″ tip facing and an ebonite construction the mouthpiece is suitable for most clarinets allowing you to deliver your best performance every time. Specifications Product: OES23 Material: Ebonite Tip Facing: 0.45″