Reed plates (material, thickness): brass, 0.9 mmReed plates (surface): brassReeds (number, material): 20, brassComb (material, color): bamboo, blondeComb (finish): triple lacqueredMouthpiece (surface): bambooCover plates: stainless steelType: diatonicTuning: RichterNumber of holes: 10Tonal range: 3 octaves.