QUAR4530, Quality Park Tyvek Open-End 1st Class Envelopes QUA R4530

Quality Park TYVEK & Tear-Resistant Envelopes: Quality Park R4530 Tyvek Open-End Envelope, 1st Class, 12'' x 16'' x 2'', 100/CT, WE, QUAR4530, Regular-weight Expansion Envelopes offer superior protection for mailing bulky items which are not too heavy. Ideal replacement for costly box or carton. Offers open-end style and convenient Flap-Stik closure. First-class envelopes are made of DuPont Tyvek and won't rip, tear or puncture. Much stronger and more secure than traditional paper envelopes. Water-resistant and moisture-resistant. Easy to use. Peel and seal. UPC 47614145307