Silica Gel Desiccant Packets by LotFancy, 5 Gram, Pack of 60, Safe Moisture Absorbing Drying Bulk Bags Protect your valuables; eliminate mildew and rust; prevent food spoilage Non-Hazardous - Premium quality, pure silica gel, no cobalt chloride Silica gel can absorb 40% of its weight in water vapor and 15% in the first two hours No change in size or shape even the silica beads become saturated, feels and looks dry Ideal for gun and ammunition containers; computer cases; camera and telescope cases; tool boxes; silver drawers; safes; display cabinets; holiday decoration storage containers Weight increase up to 40% when saturated and 15% in the first 2 hours, no Cobalt Chloride. No change in size or shape even if the silica beads become saturated with moisture. The beads will continue to feel and look dry. Prevents Mold, Mildew, Odors, and Corrosion from forming in computers and electronic equipment, jewelry, camera, lens, leather jackets, leather shoes, books, photo albums, electronics, toys, appliances etc Eliminates mildew, condensation and controls humidity. Silica gel bead are about 2-4 mm in length. Each packet is self-sealed, strong and tear resistant.