Studio 49 KB/AXG Tone Dis1 Nr.4, Alto Resonator bar, Tuned resonance chambers in best maple, Practical shape, Harmonious overtone tuning, Grillodur bars 32 x 14 mm, Available tones 1 to 12 are: c1, c#1, d1, d#1, e1, f1, f#1, g1, a1, bb1, b1, Recommended mallets S 40