This simple device is highly recommended for any string instrument, It is too dry inside a house, especially in the winter. Home heating can permanently damage a wooden instrument by causing cracks and separations. The Dampit humidifier prevents this by slowly releasing the right amount of moisture into the instrument body.
It is extremely easy to use. Follow the instructions - it only takes a minute, that's it. You can even leave it in while playing, it does not affect the instrument sound. The rubber washer included in the package prevents the Dampit from falling into the instrument. I have also noticed that the cello maintains its tuning better during storage since I started using the Dampit.
