Quality Park #6 3/4 Security Envelopes have a strong peel & stick closure that seals fast without applying moisture. Our heavy opaque envelope stock is printed with a security tint that makes envelopes difficult to see through. A complex security pattern scrambles the appearance of numbers and text. Plus, Reid-Strip envelopes have a long shelf-life thanks to the paper strip that protects your adhesive from dust. Bright 24-lb. white wove paper is perfect for use at home or at work. 3-5/8 x 6-1/2 inches. Reid-Strip Envelope Closure. 24-lb White Wove. 100 Per Box. Strong, Fast and Efficient: Reid-Strip envelopes save time and increase efficiency with a removable strip and strong adhesive seal that ends the hassle of everyday mail duty. To close them, simply peel and press. Protected & Secure: Guard sensitive data with a security tint makes envelopes difficult to see through. A complex security pattern scrambles the appearance of numbers and text. These extra security features are essential for sending checks or personally identifiable information (PII) through the mail. Eliminate the Yuck Factor: We promise you won't miss licking envelopes or those drippy moistener sponges in a cup! Reid-Strip envelopes bring mailing into the modern era with a tidier, more hygienic and still very affordable alternative to standard envelopes. Long Lasting in Storage: The peel able paper strip is not only convenient, it protects your adhesive from dust so envelopes last longer. Bright White Elegance: 24-lb. white wove paper gives your everyday mailings a professional finish. Ideal for business or personal correspondence. Stock Up for Busy Season: Keep several boxes of this necessity on hand.