It is made from import wood as its law materia, it is composed of elastic wire or environmental elastic wire! Product name:2ply paper mask Material:wood(16g) + elastic wire Size:20*7.5cm Packing:100per box, 10000per carton GW:15.5kg Certificate:CE(EN140/EN1041/EN14683/EN14155-1/EN980) It is suit for fields like medication, food, chemistry,cosmetology,environmental protectionand so on!