Hburirrty Violin Moisturizer, Sound Hole Moisturizer, Violin Maintenance Tools, Violin Sound Hole Humidifier Blue

good toughness when passing through the F hole and minimize contact with the interior of the instrument. Used for humidification and maintenance of violin. The absorbent material used for humidity indicators can absorb more than 10 times its own weight of water and discharge it in the form of gas from the opening of the pipeline. Specially designed non vinyl and anti desensitization resin materials are used. Function: When the weather is dry, humidify the violin to prevent the piano board from deforming and cracking.