Only Adjustable Humidifier for Larger Musical Instruments (Tan) By HUMISTAT USA Manage and control the humidity level of your valuable instrument - fits into every instrument case Prevent cracking, warping, shrinking, sticking keys and pads Refillable, reusable, low maintenance, enhance tone For Accordion, Bagpipe, Balalaika, Banjo, Bass, Bassoon, Cello, Drum, Dulcimer, Guitar, Harmonium, Harp, Hurdy, Gurdy, Lute, Lyre, Mandolin, Marimba, Reed, Warpipe, Zither Made in USA