Security – #10 – 4 1/8″ Width x 9 1/2″ Length – 24 lb – Gummed – White – 500 / Box

No. 10 Double Window Security Tinted Business Envelopes use a gummed closure for dependable performance. Side seam construction is modern and professional. Premium security tint ensures privacy is preserved during mailing. 24 lb. bright-white stock gives mailings a clean, crisp look. Left-side, double windows are perfect for displaying sender and receiver addresses.