#10 Machinable Double Window Business Envelopes, 4 1/8 x 9 1/2", White, Black Security Tint

#10 machinable white business envelopes with double windows are designed for high-speed mailing efficiency, making them ideal for invoices, statements, and business correspondence.

Features & Benefits:

• Double-window design aligns with standard forms, eliminating the need for address printing or labels.
• Machinable construction ensures reliable performance in automated inserting and mailing systems.
• Moisture-activated gummed closure provides a secure, permanent seal for confident mailing.
• Standard #10 size (4 1⁄8" x 9 1⁄2") fits invoices, statements, and billing documents with ease.