Favoritsafe mailing security envelopes

FAVORITSAFE security envelopes made of low density polyethylene, opaque 70 my. White on the outside and black on the inside. FAVORITSAFE is the line of envelopes for the delivery of confidential and valuable documents. The safety lock protects the contents from unwanted intrusions and shows any tampering. Protective flap with irreversible permanent adhesive. Unique bar code printed on each envelope that makes it unique. Tearproof and waterproof.