One –time use only. The non-transfer security VOID label made from PET and release glassine paper , the thickness of face material is 38 mircon . The weight of the glassine paper is 80g or else . Exterior appearance unchanged ,no trace when removed from the applied objects . once opened, the face material would be destroyed ,no residue would be attached on the products . also the hidden words “void open “ will be attached on the products .We can meet our customers' requirements and make the customized mould .