These reeds are cut for the intermediate to advanced player, designed for a clear balanced sound. The most widely played reeds in the professional world, with a superiority proven over many years, these reeds suit all styles of music. The principal acoustic qualities are: Excellent response in all registers, even allowing a pianissimo attack of the highest notes. Flexibility allowing the legato or staccato execution of large intervals. A richness of tone which gives body and brilliance to the sound. Thickness at the tip: .09mm (0.0035 inch) Thickness at the heel: 2.8mm