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Product Information for Quality Park First Class Expansion Envelopes
Highlights for Quality Park First Class Expansion Envelopes
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.