Start of lstUrls_of_images_in_html_descriptionProduct Number: 222555 Lockdown Silica absorbs moisture from the air inside a vault or storage area preventing condensation, mildew and rust from damaging valuable firearms. Crystals change color once fully saturated and can be easily recharged in the oven. Absorbs moisture from the air Easily recharged in oven Durable vented can for easy handling End of lstUrls_of_images_in_html_description