Brief Description:These tamper-proof security envelopes can leave clear and indelible mark to any attempt of unauthorized opening, thus be able to provide perfect optical opaqueness and ensure maximum confidentiality.

Features:

1.Impact and tear resistant

2.Heating & freezing resistant

3.Waterproof

 4.Safe Delivery

5.Deter unauthorized read or theft.

Security Envelopes are designed for a wide range of customers seeking tamper-proof security:

1.High security cash transit companies.

2.Police and judicial criminal divisions amassing trial evidence.

3.Security services transporting top-secret documents.

4.Credit card companies