QUAR4640, Quality Park Tyvek First Class Envelopes QUA R4640

Quality Park TYVEK & Tear-Resistant Envelopes: Quality Park R4640 Tyvek Open-Side Envelope, 1st Class, 10'' x 15'' x 2'', 100/CT, White, QUAR4640, First-Class Expansion Envelopes offer superior protection for mailing bulky items. Ideal replacement for box carton. Envelopes feature regular weight Tyvek, open-side style and convenient Flap-Stik closure. Convenient Flap-Stik Closure requires no moisture to seal. Envelopes of DuPont Tyvek won?t rip, tear or puncture. Much stronger and more secure than paper envelopes. Water-resistant and moisture-resistant. Environmentally safe. UPC 47614146403