High-quality saxophone reed, Carbon Onyx, size M. For tenor saxophone. - Brand: Harry Hartmann's Fiberreed - Model: Carbon Onyx - Size: M - Strength: M A brand of synthetic reeds (made of synthetic fibers, not cane) manufactured by Harry Hartmann. Made in Germany. - Model: Carbon Onyx - Among Fiberreed models, this model uses carbon fiber as a material. It is more durable than regular cane reeds and is characterized by stable sound. - Material: Composite material of carbon and epoxy. Unlike natural reeds, there is no individual variation, and there are no "good" or "bad" reeds within a box. - Tone: As the name "Onyx" suggests, it is characterized by a slightly dark, warm, and thick sound. Carbon-based reeds tend to have a bright and hard sound, but this is designed to suit players who prefer a relatively classical or thick sound. - Lifespan: Very long-lasting. It is less likely to deform or warp due to moisture like natural reeds. - Response: Well-balanced, providing a stable playing feel throughout the entire range. Thank you for viewing.