Ideal for securing bulky mailings Expanding gusset helps get your extra-thick mailings through the mail. Redi-Strip (TM) closure requires no moisture to seal. Made of durable 40-lb kraft material. Quality Park (R) Expansion Envelopes, 5in. x 11in. x 2in., Brown, Box Of 25 is one of many Open End & Catalog Envelopes available through Office Depot. Made by Quality Park.
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