A humidity regulator that is inserted inside the instrument. Made of cloth and therefore safe to use. Keeps humidity at approx. 40-60% for 5-7 days after being moistened. Can be used repeatedly.
Moist Partner Sheet for humidification
For contrabass
Size: approx. 40 x 180 mm
Made of water-absorbent polymer and urethane resin.
Checkerboard pattern
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