Keep your Weissenborn — or any acoustic guitar — protected from drops in humidity with this soundhole mounted humidifier. Simply suspend from the 3rd and 4th strings and replenish with water as needed to affordably maintain the ideal Relative Humidity for your instrument. The Planet Waves Guitar Humidifier locks in securely to the strings, ensuring it won't move or rattle and come in contact with the guitar body, even during transit. Humidity is a leading cause of cracks, bellying and other structural issues in acoustic instruments. For best results protecting your Weissenborn, your Planet Waves Humidifier should be used in conjunction with a Weissenborn case.