You wouldn't leave confidential letters lying around, so why use envelopes that make it just as easy for prying eyes to scan what's inside? In an age where information is exchanged at lightning speed, you need to protect your sensitive data. Poor quality envelopes make it easy for snooping eyes to read sensitive information without even opening the seal. When the only thing that stands between you and compromised data is a layer of paper, what's the best way to protect business and legal correspondence? The Quality Park #10 Security Self-Seal Envelopes with Windowless Design keeps your important mail sealed and secure. Made with thick and opaque material, these #10 Quality Park envelopes keep documents and contracts confidential and reserved only for the receiver's eyes. No transparent panel means the contents are completely obscured. The windowless design also makes it easy to add labels and print addresses. Licking envelopes is unsanitary, so it's a good thing these come with their own strong adhesive. Just slip the contents inside and close securely. No need to use glue, tape, or other messy adhesives. Their self-sealing feature makes these envelopes a great choice for high volume mailing tasks, such as for mailing newsletters or preparing payroll in bulk. Make sure your correspondence arrives at their destination sealed and in one piece. These envelopes are marked with the Quality Park seal of quality, a brand equated with premium quality paper products. They won't rip or tear easily. They also come in a value pack so you get a reliable and long-lasting supply of Quality Park security envelopes. More reasons to protect your letters with #10 security envelopes: - Bulk pack - Durable & opaque - Solid design with no panels Invest in envelopes you can trust from your desk to the destination. Add the Quality Park #10 Security Self-Seal Envelopes with Windowless Design to you cart TODAY.