Lightweight Tyvek mailer is moisture, puncture and rip resistant. Grip-Seal flap provides a strong, simple, peel-and-press closure. Envelope Size: 9 x 12; Envelope/Mailer Type: Mailer; Closure: Self-Adhesive; Trade Size: #90. Additional Details9 x 12; Catalog; Catalog Envelope; COLUMBIAN; Envelope; Envelopes; Grip-Seal; Mailing Envelope; Tyvek; White; Posts; Letters; Packages; Mailrooms; Shipping; Receiving; Stationery
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