D Addario s signature reed case holds eight of any size clarinet or saxophone reeds from Eb clarinet through baritone saxophone. Reeds are held snugly to a grooved surface which prevents warping. The airtight gasket ensures a proper seal which keeps reeds safe and stable when traveling. Each of our reed storage cases comes with one humidity control pack in 72% relative humidity and features Reed Vitalizer two-way humidity control technology.