The 4 gram Boveda 2-way humidity control packs will keep your flower at 62% humidity for months. Used for both storing and curing, with no activation process required. Simply place one 4 gram pack in a sealed, air tight container with up to 1/2oz (14 Grams) of flower to keep the humidity inside that container at a constant 62%RH. Enhance the color, aroma and flavor, while prolonging freshness. Replace when the pack becomes rigid.