The Humilele from Music Nomad is a ukulele humidifier that keeps ukulele wood from warping shrinking or cracking due to lack of moisture. This easy-to-use no-mess and low maintenance humidifier rests securely on top of the strings to safely and evenly hydrate your uke to avoid these problems. The innovative Humid-i-Bar sponge holds a lot of water and has anti-drip properties. This means less monitoring on your end allowing you to rest assure your precious ukulele is being cared for. When you want to check the Humilele all you have to do is pop the top touch the Humid-i-Bar. If it s wet leave it. If it s dry it s time to rehydrate. Rehydrating is a cinch too. Simply remove the Humid-i-Bar sponge soak it in distilled water and you re back in action. Easy no mess and low maintenance.