Designed to emulate the stability of a Bb clarinet reed, without needing to cut or modify a larger reed to fit the Eb clarinet Ideal for the advancing student and professional Crafted using a groundbreaking new digital vamping process, for ultimate quality control, precision, and consistency | Expertly designed and made in the USA from naturally-grown cane from D'Addario's own foreign fields Available in half strengths, from 2.0 to 4.5, with a special 3.5+ strength |