Tamper-indicating Mailers Made With Tyvek, #10 1/2, Redi-strip Closure, 9 X 12, White, 100/box

When packets arrive, recipients will know right away if the package has been mishandled. Once the seal is broken on each envelope, the Tamper Indicating Panel (TIP) displays “OPENED” as clear evidence. If no tampering has occurred, then the contents will remain in top condition thanks to durable Tyvek construction and tight, self-sealing closure. Seam Type: Center; Flap Type: Flip-Stik; Trade Size: #10 1/2; Security Tinted: No.