Reed Booster for Alto Sax, $19.95, Designed in California Adds brilliance to your tone, non-destructively.Increases tonal clarity; Widens tonal range; Increases volume projection Enhances & lengthens useful life of reeds. Adds responsiveness to dull reeds. Utilizes the Bernoulli Effect to increase airflow inside your mouthpiece. Each package includes a specially-designed reed storage case. Available for all saxophones and clarinets.