Quality Park® #9 Reveal-N-Seal® Business Security Double-Window Envelopes, Left Windows (Top/Bottom), Self Seal, White, Box Of 500

Quality Park® Double Window Envelopes display both sender and receiver addresses for mailing statements and invoices. Reveal-N-Seal® envelopes have enhanced security features. A perforated tamper evident self seal will clearly show if someone has attempted to open the envelope. A reflex blue pattern protects sensitive client information because it obscures the details of the contents, even when held up to light. These 24 lb white wove envelopes have side seams for a clean, professional look.