Silica gel desiccant is made of narrow pore silica gel by packing into the breathable pouches. The size of pack ranges from 1 gram to 1000 grams. It can be put into various kinds of packages of different articles for moisture protection, rust protection, mildew and odor prevention. It can also be used for instruments and apparatus, electronic products, leather, clothing, shoes and hats, foodstuffs, medicines, containers and household wardrobe  to prevent them from getting dampened.