QUAR4440, Quality Park Tyvek Expansion First Class Envelopes QUA R4440

Quality Park TYVEK & Tear-Resistant Envelopes: Quality Park R4440 Tyvek Open-Side Envelope, 1st Class, 10'' x 13'' x 2'', White, QUAR4440, Expansion Envelopes with heavyweight Tyvek offer superior protection for mailing bulky items which are not too heavy. Ideal replacement for costly box or carton. Features open-side style and convenient Flap-Stik closure. Envelopes made of DuPont Tyvek won't rip, tear or puncture. Much stronger and more secure than traditional paper envelopes. Water-resistant and moisture-resistant. Easy to use, just peel and seal. UPC 85227144409