Music Sorb for Stringed Instruments
Music Sorb has huge capacity. (See the Science Behind Music Sorb).

Protect the wood in your musical instrument
How many units you should use depends on your ambient humidity, how much you travel with your instrument, and how diligent you are to keep your instrument case closed. But we do try to give the following guidelines:

Protect the wood in your guitar
A violin can be maintained with three pouches.
A guitar can be maintained with six.
From cello to stringed bass with six to nine.
If you have a solid instrument case and live in a stable weather area (where is that these days), you could probably get away with fewer units. But if you have any question at all, please write to us and we will answer faster than you might think.