500 No. 10 Security Envelopes - Gummed Flap - Tamper Proof Design - Security Tinted with Printer Friendly Design - Number 10 Size 4 1/8 x 9 ½ Inch - Pack of 500

Our Blue Summit Supplies #10 Windowless Security Envelopes are designed for complete mail security, protecting your sensitive documents from prying eyes throughout the mailing process.

With a durable dark black security tint and thick white paper stock, these envelopes provide maximum protection against tampering and loss.

Plus, their easy-to-use gummed seal design ensures that your contents remain securely inside.

Don't settle for anything less - choose Blue Summit Supplies #10 Windowless Security Envelopes for all your mailing needs!