Thomann wooden mouthpiece for tuba, size 24AW, made of Ebony wood, allround mouthpiece, cup inner diameter: 31,50 mm = 1.24 Inches, cup outside diameter: 49,50 mm = 1.95 Inches, medium deep cup, wide and rounded edge, drilling: 8,5 mm running = 0.35 Inches, total length: 89,00 mm = 3.86 Inches, elaborate 5-layer lacquering, shaft oiled several times on the inside, extreme longevity, made in Austria