Oasis OH-6 Case Humidifier - The huge success of the original Blue Oasis sound-hole humidifier has brought many inquiries about ways to provide humidification for other instruments including violins, violas, cellos, mandolins, ukuleles, jazz guitars and with flat top cases.After careful consideration, decided best approach solving this challenge was develop a that attaches inside instrument case. Finding secure way attach case, still have it easily removed reattached, no small challenge.With proven technology, humidifier, inserted two neodymium magnets in seam humidifier. then case using either steel belt style clip or stainless strip adhesive backing. fits over side provides vertical surface adhere. backed allows horizontal attachment anywhere there is An advantage type flexibility position wide variety locations within your musical instrument's case.A 10cc. syringe also included. will increase user's control during filling refilling Since holds 32cc's water, take 3+ syringes water fill first time. After that, refills should only 1+ water. As always, recommends use distilled which extend useful life humidifier.You can see when ready refillLong lasting humidificationWon't leak due overfillingTwo levels protection accessories, Fretted Instrument accessories & Parts, Fretted Instrument accessories, Humidifiers for Fretted Instruments