The E-150 Moisture Eliminator Pouch uses safe, non-toxic micro absorbing silica gel technology to remove excess moisture from damp and humid environments. Perfect for small enclosed areas, The E-150 Moisture Eliminator Pouch will last up to 45 days. Indicator beads let you know when its ready to be discarded. Each package includes two 8-ounce pouches. With their compact size and mess-free design, E-150 pouches are ideal for suitcases, shoe boxes, autos, golf bags, purses, storage containers, camera cases, instrument cases, gun bags, duffel bags, safes, or any smaller spaces that can benefit from moisture removal.