Feature:1. Good Dehumidification Effect: This absorbent is extremely hygroscopic, absorbing moisture from the instrument within 24 hours of opening the package.2. Individual Package: This absorbent comes in individual packages sealed with double sided aluminum film, making it easy to carry and use.3. Magnesium Chloride: No matter how low the humidity, as long as there is moisture in the air, magnesium chloride will absorb the moisture, giving you a dry environment.4. Multifunctional: This hygroscopic agent can be used not only for daily maintenance and maintenance of musical instruments, but also for electronic components and agricultural products.5. Scope of Application: The hygroscopic agent is suitable for most wooden instruments such as electric guitar, acoustic guitar, classical guitar, bass, ukulele, violin, etc.Specification:Item Type: Musical Instrument Desiccant PackMaterial: Magnesium ChlorideProduct Shelf Life: 2 years in the unopened state.Package List:12 x Musical Instrument Desiccant PackNote:The suitable humidity for wooden musical instruments is 40‑60%. When the humidity is too high, the moisture content of the wood is too high, and it is easy to expand, deform, mold or even degumming, which will lead to a decrease in sound quality and poor playing feel.