Use the mixture of cacl2 and high water adsorption material as absorbent, its adsorption capacity reaches over than 250% in 30 days, and can over than 300% in 60 days. We can provide tuv test reports . This special mixture material turns into solid gel after full adsorption, great to reduce the material��s mobility.There is Cargo guard-2000g is widely used in various fields, including:semiconductor and electronic products, metal products, military products, precision instruments, machinery equipment, chemical materials, medicine, health care products, food packaging, canned food, pet food, textiles, furniture, leather products, bulk grains, agricultural products, transport of goods, warehousing���� Appearance size: 30cm*23cm*3cm