The Grover Ukulele Humidifier allows you to partially or completely cover the sound hole depending in humidity levels and allows you to add water without removing the cover. Made of soft latex, the Grover Ukulele Humidifier is harmless to all instrument finishes.
Comes complete with moisture indicator to keep the instrument between 40-50 percent humidity.
E-Z fill design. You can add water without removing the sound hole cover.
In moderate conditions you can hang the humidifier tube between the strings without the cover.
The bottom of the sound hole cover has rounded edges to protect the instrument from scratching.