Lightweight, poly envelope is rip, puncture, chemical and water resistant. Security-lining ensures content confidentiality. Grip-Seal flap produces an ultra-strong seal. Envelope Size: 9 x 12; Envelope/Mailer Type: Mailer; Closure: Self-Adhesive; Trade Size: #90. Additional Details9 x 12; COLUMBIAN; DuraShield; Mailers; Mailing Envelopes; Open End; Plain White; Poly; Poly Film; Security Envelopes; White; Posts; Letters; Packages; Mailrooms; Shipping; Receiving; Stationery
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