1.standard size:50mmx50m
2.thickness:25 micron or 50 micron
3.usage:box sealing,carton sealing,bag sealing

You can not see the hidden word OPENED before removing our material or labels.Once opening,the face stock as well as the applied object will reveal the word OPENED and the tape can not reseal any more.Any open without permission during the transportation can be easily identified by the evident word.As a result, it can achieve the purpose of anti-fake.Random size,message or graphic are available.