Integra Boost Humidiccant uses a patented technology that releases or absorbs moisture, maintaining relative humidity in a contained environment at or about 55% relative humidity. Each individually wrapped Integra Boost packet includes a replacement indicator card, when the round dot turns from pink to blue, it s time to replace your Integra Boost pack. Available in 8 gram (2 in x 2 in x ? in) or 67 gram (4 in x 6 in x in) sizes.