Highlights:Use in anything from small baggies to gallon sized containersMaintains 62% Relative Humidity in airtight containersComes in a plastic storage bagThe Boveda 62% Humidity Control Pack is a functional and safe way for customers to keep their herb fresh and tasty. These environmentally friendly humidipak packs can even be used to help restore dried out product. The 2-way FDA approved technology will stabilize humidity within 48 hours. For best results, Boveda packs should be kept in closed, air tight containers or bags. To ensure the 2 year shelf life Boveda recommends storing in air sealed plastic bags.Boveda is fresh... exciting!Note: Do not mix Boveda RH levels within the same container, and do not use Boveda in the same container with other humidification products. They will fight against each other and reduce the efficiency of the Boveda.