1 gram cotton silica gel packets. Picture used for informational purposes only, actual packet may be slightly different.Descripiton about silica gel packets. 300 1 gram silica gel packets desiccants keep dry 300 1 geam silica gel packets desiccants keep dry process equipment. When used in closed palces (where mold and fungus live and breed) silica gel whisks away moisture to create a protective environment of dry air. It prevents all forms of rust, corrosion, oxidation, mildew, fungus, mold etc. Prevents tarnish on gold adn silver. Put in your toolboxes to protect your precious otols from rusting. Drop some in your camera bag to protect your valuable camera equipment. It even protects expensive leather itesm like jackets, shoes, and boots. Also great ofr tackle boxes, photo albums, computer media storage and so on.