HOHNER ECHO48C ARMONICA TREMOLO SERIES Reed plates (material, thickness): brass, 0.9 mm Reed plates (surface): brass Reeds (number, material): 48, brass Comb (material, color): maple, blonde Comb (finish): double lacquered Mouthpiece (surface): maple Cover plates: stainless steel Keys: C Type: tremolo Tuning: Richter, two row Number of holes: 48 Tonal range: 3.5 octaves Length: 19.3 cm / 7.6"