Boveda 2-Way Humidity Control Packs, 65% - 60 Grams, Pack of 100Bovedas patented two way humidity control preserves the rich flavors, delicious aromas and potent effects of buds wherever you store flower to keep it freshMason jars, stash bags, and airtight containers. Nobody wants to smoke less than stellar flower. When overly dried, bud can lose the rich flavors, delicious aromas and potent effects people are looking for. Boveda works automatically using its patented 2 way humidity control to protect flower,