Double Window Security Envelopes #10 Peel and Seal– Perfect for mailing invoices, statements, and legal documents, these #10 window envelopes feature a dual-window design that displays sender and recipient addresses clearly for professional business correspondence. QUICK-SEAL Self Seal Convenience – Save time with an ultra-strong adhesive strip that requires no licking or moisture. These window envelopes self seal #10 provide a secure closure every time, preventing splits or openings in the mail. Perfect for double window envelopes self seal #10, Envelopes 10, and #10 Envelope. Superior Privacy Protection – Each double window envelopes self seal #10 is printed with a dark, tinted security pattern that completely obscures sensitive data, making them ideal payroll envelopes and envelopes with windows for financial mailings. Designed as Envelopes 10 and #10 Envelope. Designed for Business Efficiency – Sized at 4-1/8” x 9-1/2”, these 10 double window self seal security envelopes fits QuickBooks checks, Excel statements, and letter-size documents folded into thirds, eliminating the need for extra labels. Great for double window envelopes self seal #10, Envelopes 10, and #10 Envelope. 1,000 Count Supply – Built for high-volume mailing, this bulk pack of 1,000 self seal security envelopes helps keep businesses, accounting departments, and organizations running efficiently. Durable 24 lb. white paper construction provides dependable performance for daily business mail. 1000 #10 Double Window SELF Seal Security Envelopes - for Invoices, Statements & Documents, Security Tinted - EnveGuard, Size 4-1/8 x 9-1/2 -White - 24 LB - 1000 Count (30001)