Features: * brand new and high quality. *Clarinet reeds 1.5,2.0,2.5,3.0,3.5,4.0 have a growth period of more than two and a half years. It is not easy to be deformed. *Every piece has the consistent size，Can create more stable sound. *Harvested by hand, made by digital reed-making technology that promotes excellent response in all registers. *The reeds are naturally air-dried for more than two years. *You can prepare a few reeds for change, which can effectively extend the life of the alto Clarinet. Description: Strength: 1.5,2.0,2.5,3.0,3.5,4.0 (Optional) Material: Reed Weight:30g Package include: 10 x Reeds Note: In order to distinguish the Strength,the appearance is different. 【Long Growth Period, Minimal Deformation】These Bb clarinet reeds, with a growth period of over two and a half years, are highly resistant to deformation, their durability and reliability. 【Consistent Size, Stable Sound】Each reed is precisely crafted to maintain a consistent size, resulting in a stable and balanced sound output for your clarinet. 【Hand Harvested and Digitally Crafted】Harvested by hand and crafted using advanced digital reed-making technology, these reeds offer excellent response across all registers, enhancing your overall performance. 【Naturally Air-Dried for Enhanced Performance】The reeds are naturally air-dried for over two years, allowing them to develop optimal playing characteristics and tonal quality. 【Extended Lifespan with Spare Reeds】To prolong the lifespan of your alto clarinet, it is recommended to have spare reeds on hand. This allows for regular reed changes and ensures consistent playability.