LUX Window #10 Envelopes, Botton Left Window, Gummed Seal, Midnight Black, Pack Of 50

Send invoices and statements quickly and easily using window envelopes Ideal for sending letters, invoices or statements. Made of 70-lb paper. Moisture-activated glue closure seals contents for secure mailing. Window on bottom left provides a clear view of address information and eliminates the need for separate address labels.