Herco JD-HE360 Guitar Humidifier Single

You might wonder, how long do Herco guitar clay humidifiers last before re-wetting? The answer is quite some time. The clay-filled containers will release water over several days and might be preferable to some people over sponge-based humidifiers, which do need a bit more care and attention. At less than $4.00 apiece, the Herco guitar humidifier is a wise investment for anyone who wants to guard his or her instrument from the dangers of low humidity.