These are two-way humidity control packets. They are used by putting them into your case and they either pull moisture out, or add it back and help maintain a 45%-50% humidity in your instrument case. They will last about 3 months under normal conditions.
These are two-way humidity control packets. They are used by putting them into your case and they either pull moisture out, or add it back and help maintain a 45%-50% humidity in your instrument case. They will last about 3 months under normal conditions.
