Blue Summit Supplies #10 Business Envelopes, Double Window, Security Tint, Self Seal, 500/Pack

Durable and professional go-to standard business envelope for mailing invoices, statements, and other office mailing needs Roomy enough for a return envelope to be included, so you can get paid faster Low profile flap design creates a wide opening for easy and quick envelope stuffing Peel and seal closure is quick and easy to use without any need to lick or moisten the glue Dark security tint lining keeps your important documents securely concealed throughout transit Product Features: #10 double window envelope Dimensions: 9 1/2 inches X 4 1/8 inches Security lining 24lb white wove paper Package quantity: 500 Count Precautions: This envelope is equipped with a self seal, which means it requires that you peel away the protective strip to reveal the glue. It does not require moistening, but cannot be used in a bulk mail machine. For envelopes that can be used in a mail machine, you’ll want to use a gummed seal envelope. This envelope is not suitable for printing in a laser printer,