# Quality Park™ Tamper-Indicating Mailers Made with Tyvek, #10 1/2, Flip-Stik Flap, Redi-Strip Adhesive Closure, 9 x 12, White, 100/Box

Catalog mailers are made with durable 14 lb DuPont™ Tyvek®, which is strong enough to withstand the most grueling conditions. The material is puncture, tear and moisture resistant€”virtually indestructible.

-   Catalog mailers made with DuPont™ Tyvek® material are lightweight, yet strong and durable.
-   A unique tamper indicating panel on the envelope flap displays the word "OPENED" in red if the seal is broken.
-   Made with DuPont™ Tyvek®, these mailers are tough enough to resist punctures, tears and moisture from the shipping process.
-   Feature a Flap-Stik® peel and seal closure for a clean, sanitary seal without moisture and a release strip for quick opening.

## Details

- **Price:** 131.63 USD
- **Vendor:** Quality Park™
- **Type:** Catalog Envelopes
- **Tags:** 9 x 12, Advantage Tyvek, Confidential, Envelope, Envelopes, Letters, Mailer, Mailrooms, Packages, Posts, QUALITY PARK, Receiving, Security, Shipping, Stationery, SURVIVOR, Survivor Envelopes & Mailers, Tamper Indicating Panel, Tamper-Proof, Tyvek, Tyvek Envelope, Tyvek Envelopes & Mailers, White

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 131.63 USD | In stock |

## Images

- Tamper-Indicating Mailers Made with Tyvek | 9x12

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> Source: [Bloom Skins](https://www.bloomskins.com/products/tamper-indicating-mailers-made-with-tyvek-10-1-2-flip-stik-flap-redi-strip-adhesive-closure-9-x-12-white-100-box)
> Updated: 2026-08-29