Buffet Crampon R13S Greenline Professional Bb ClarinetBuffet Crampon's unique Greenline grenadilla and polycarbonate composite renders the R13 highly resistant to cracking while preserving the resonant qualities of wood. Musicians can rest assured their instrument will perform as intended regardless of weather or atmospheric conditions. The R13 Greenline clarinet's exceptional durability and stability make it an ideal choice for performers frequently traveling between venues or teaching in areas with