Looking for a humidifier for your ukulele or acoustic guitar? Our humidifier is of innovative design and easy to use. It's a perfect gift choice for yourself or your family members, friends and anyone who loves playing ukulele or guitar. Features: 2 types of universal humidifier optional: for ukulele or for folk/ classical guitar. Great for beginners or professionals. Monitors the humidity inside, with pointer dial for easy reading; beautiful and elegant, accurate and durable. High quality internal sponge, good water absorption ability, humidify evenly; easy to replace it for long-lasting use. Clip it to the soundhole, the silica gel protects the soundhole against damage; tension branches, applicable to more sizes. Easy to operate, convenient maintenance for your ukulele or acoustic guitar. Perfect gift for anyone who has a ukulele or guitar. Note: Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Model: GHD-02 (for Ukulele)/ GHD-03 (for Guitar) -- Optional Main Color: Black Main Material: Plastic + Metal + Sponge Package Size: GHD-02: 103 * 86 * 75mm / 4.06 * 3.39 * 2.95in GHD-03: 137 * 134 * 45mm / 5.39 * 5.28 * 1.77in Package Weight: GHD-02: 78g / 2.75oz GHD-03: 100g / 3.53oz Package List: 1 * Humidifier 1 * 10ml Water Kettle