Acoustic guitar wood needs moisture to play and look its best. A dry guitar can warp, shrink and worse yet, crack! MusicNomad, the leader in equipment care products, has developed an easy to use, no mess, and low maintenance guitar humidifier. The Humitar safely releases moisture evenly to eliminate these potential problems. Our innovative Humid-i-Bar sponge holds a lot more water than our competition. This means less monitoring on your end while resting assured your fine guitar is being cared for. Time to check the Humitar? Easy! Pop the top, touch the insert; if it's wet leave it, if it's dry, it's time to rehydrate. Rehydrating is a cinch - simply remove the Humid-i-Bar sponge, soak it in distilled water and you're back in action - easy no mess and low maintenance. The easy way to maintain your acoustic guitars.