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.
Tamper-Indicating Mailers Made with Tyvek, #13 1/2, Flip-Stik Flap, Redi-Strip Adhesive Closure, 10 x 13, White, 100/Box