Maintaining the proper humidity vary with minimal effort and hard work is a snap! This two oz. jar is packed with unique pre-billed drinking water absorbing gel crystals. These jars can be used in addition to your humidor's current humidifiers or by themselves. To employ, simply just twist off the cap & place the jar https://medium.com/@refinedtraditions/the-ultimate-buyers-guide-to-humidor-cabinets-09e99f97a801