One –time use only. The partial transfer security VOID material made from PET with release glassine paper ,the normal thickness of face material is 25 or 50mircon . Once peeled off from applied objects, the face material would be destroyed , partial adhesive residue would be attached on the products ,also the hidden words “void or o void open “ will be attached on the products .We can meet our customers' requirements and make the customized mould .