Pesfehhy F Hole Violin Humidification Tube to Prevent Dry Cracking of the Panel Maintenance

For the humidification and maintenance of the violin, the special non-vinyl and anti-desensitization resin material is used to good toughness when passing through the F hole, and to minimize the contact with the inside of the instrument. The moisture indicator uses water absorption The material can absorb moisture more than 10 times its own weight, and discharge it from the hole of the pipe in the form of gas