D'Addario Planet Waves Humidifier Pro
The D’Addario Planet Waves Humidifier Pro keeps your guitar safe from cracks and drying out by using a specialized hydrophilic sponge that can hold up to 12X its dry weight in water, which allows for more time being protected between re-fills. The Pro Humidifier from D'Addario Guarding helps protect against some of the most notorious issue caused from drying out such as cracks, warped necks, and shrinkage of the fret board. The handy guitar humidifier hangs between the strings, releasing moisture evenly and slowly inside your guitar without touching the guitar or making any mess. If you open the access door to find the sponge dry simply remove the sponge, add more water and pop it back in to keep your instrument happy and humidified.