For BG ligatures : L8 - L8R - L8SR - L14 - L14SR - L2 - L3 - L3B - L39 - L10 - L11 - L17 - L19 - LFB - LFB9 - LFGB - LDS - LDS0 - LDS1 - LDSB - LDS9 - L21RJ. Made of ABS, a strong and durable material. Offers a protective shape to avoid damaging the reed and protect the mouthpiece from possible shocks. This mouthpiece cover is equipped with openings for ventilation and to avoid the accumulation of moisture.