Moisture Indicating Silica Gel Moisture Absorbers (Desiccant) - 7/8" X 1 1/2" - 1 Gram - 20 Packets of Silica Gel - Dry-Packs Indicating Silica Gel Packets Provides Superior Absorption While Remaining Dry At Maximum Saturation! - Dry-Packs brand Indicating Silica Gel does NOT contain Cobalt Chloride (normally found as blue indicating silica gel) which is classified as a IARC Group 2B carcinogen. - 20 - 1 Gram Indicating Silica Gel Packets! Perfect for your everyday moisture absorption needs! - The Packet of Silica Gel is made of clear perforated plastic. Moisture Indicating Silica Gel beads will change from Orange to Dark Green once Silica Gel is at 60% moisture capacity, giving you warning you will need to replace soon. - Silica Gel can absorb up to 40% of it's weight in moisture and will work until fully absorbed, so the more you use the more protection and longer it will last!