Lightweight Tyvek mailer is moisture, puncture and rip resistant. Grip-Seal flap provides a strong, simple, peel-and-press closure. Envelope Size: 9 1/2 x 12 1/2; Envelope/Mailer Type: Mailer; Closure: Self-Adhesive; Trade Size: #93. Additional Details9-1/2 x 12-1/2; Catalog; Catalog Envelope; COLUMBIAN; Envelope; Envelopes; First Class; Grip-Seal; Mailing Envelope; Tyvek; White; Posts; Letters; Packages; Mailrooms; Shipping; Receiving; Stationery
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