Horizontal, file-style expansion mailer makes material packing and removal easy. Durable Tyvek construction is substantially stronger and significantly lighter than paper. Grip-Seal flap produces a secure, moisture-free seal. Envelope Size: 13 x 10; Envelope/Mailer Type: Special Case; Closure: Self-Adhesive; Trade Size: #97. Additional Details13 x 10 x 2; COLUMBIAN; Envelope; Envelopes; Expansion; Expansion Envelopes; Mailer; Self-Seal Envelope; Tyvek; Posts; Letters; Packages; Mailrooms; Shipping; Receiving; Stationery
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