Durable, lightweight Tyvek® mailer is moisture and rip resistant. Tamper Indicating Panel (TIP) flap displays the word “OPENED” in bold red letters if seal is broken. Flap-Stik® self-adhesive closure provides a secure seal. Envelope Size: 10 x 13; Envelope/Mailer Type: Mailer; Closure: Self-Adhesive; Trade Size: #97.
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