500#10 single window envelopes-thick gummed seal-designed for secure mailing of quickbooks checks, invoices, business statements, personal letters - 4 1/8 x 9 1/2 blue summit supplies <p> <strong> save time and money sending business mail with our # 10 security envelopes </strong></p> <p> quickly and easily send hundreds of business invoices, bill statements, and checks with our #10 envelope design and cost effective gummed seal.</p> <p><ul> <li> our gummed flap with thick adhesive make for quick and easy mass mailings. </li> <li> saves you money on bulk business mailing of business statements, invoices, or checks </li> <li> enough room for return envelopes so you can get paid faster </li> </ul></p> <p> <strong> business mail will be completely secure during transit </strong></p> <p> it can be so difficult to find envelopes that create a strong lasting seal thus forcing you to waste time using glue sticks or tape to close the envelopes. our single window envelopes with strong adhesives are designed to immediately create a strong seal so you do not have to worry about your contents being exposed to others. </p> <p> unlike weak sealing envelopes that allow your contents to fail out and become exposed, so much for a security envelope, our strong seal will guarantee the safety of your contents. </p><p>> 24 lb white wove paper that creates a professional look and feel from out of the box all the way to your destination</p> <p> <strong>100% money back guarantee</strong></p> <p> we stand behind our products completely. we understand that sometimes buying physical products can be difficult if you cannot physically see what you are buying, however, if our product is not exactly what you are looking for, or does not meet your expectation then send them back anytime for a 100 % refund. </p>