Use these envelopes to mail invitations, documents and more Fits documents on their horizontal side. Made from durable, 28-lb paper. Gummed closure helps keep contents secure. JAM Paper (R) Booklet Envelopes, #10, 4 1/8in. x 9 1/2in., Dark Gray, Pack Of 25 is one of many Booklet Envelopes available through Office Depot. Made by JAM.
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