Quality Park 10 x 13 x 1-1/2 First Class Mail Catalog Envelopes with Self-Seal Closure - First Class Mail - 10" Width x 13" Length - 1 1/2" Gusset - Self-sealing - Linen - 100 / Box - White

SHIP-lite Expansion Envelopes offer plenty of added capacity in open-end style. Ideal for mailing bulky materials such as computer reports, books and binders. Perfect replacement for costly boxes or cartons. First-class envelopes feature an open-ended design and convenient Flap-Stik adhesive flaps. Linen texture creates a professional distinctive image.