... sound 3. Stable Metronome 4. Robust structure Professional china metronome for sale Metal mechanical core,pure metal movement · Accurate beat with bell ... ,stable,loud · Bell for beats 0, 2, 3, 4 and 6 · Easy operation · Wooden ... : 62 x 26.5 x 28.5 cm /carton · Quantity in one box: 10PCS·Other:retia outside, brightness, high-grade, stable ...