MusicNomad MN300 Acoustic Guitar Humidifier

Durable, low maintenance humidifier for acoustic guitars. Safely and evenly releases moisture to avoid bulging, shrinking and cracking. The innovative humid-i-bar sponge holds 10 times its weight in water and features a drip-free, dirt-repellent material that safely releases moisture. With the practical Quick-Flip-Top you can check whether the humid-i-bar sponge is wet or dry. Hangs from the strings to safely drain moisture into the sound hole.