Tamper-indicating Mailers Made With Tyvek, #10 1/2, Flip-stik Flap, Redi-strip Adhesive Closure, 9 X 12, White, 100/box Single-Fold-9.5 x 9. 250 towels per pack. Black color blends seamlessly into

Black color blends seamlessly into contemporary environments

With patented silicone-fused palm for super-tacky grip

The vented frame allows for airflow and improved anti-fog performance

it can be relied upon for up-to-the-minute accuracy and precision

Easy-to-clean and maintain—just shake out

Tamper-indicating Mailers Made With Tyvek, #10 1/2, Flip-stik Flap, Redi-strip Adhesive Closure, 9 X 12, White, 100/box Single-Fold-9.5 x 9. 250 towels per pack. Black color blends seamlessly intoQuality Park Survivor Tamper Evident 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 resistantvirtually indestructible. Yet, it is still lightweight which can provide a savings on shipping costs. Each envelope has a unique tamper indicating panel that displays the word "OPENED" in red if the seal is broken.