... eco-friendly,safe,resusable 5.cheap,easy to use 280ml Moisture Absorbent Box Specification: quantity: 230 g/boxMain ingredients: ... and calligraphy, cultural relics, such as documents, files the moisture. (in impermeability high space, the effect is much better) ... -resistant divide peculiar smell, this product by using special moisture absorption structure, such as dumping inside solution will not ...