About the D'Addario DRGRD4ACBL Reed Guard, Green(Bb/Eb Clarinet and Alto/Soprano Sax):
 
D'Addario Small Reed Guards are a stylish, effective way to keep your reeds safe and secure. The soft elastomer cover is designed to securely but gently hold any assortment of clarinet and saxophone reeds. Small Reed Guards are designed to accommodate reeds for Eb Clarinet, Bb Clarinet, Soprano Saxophone, and Alto Saxophone.