Quality Park No. 9 Double Window Security Tint Envelopes with Self-Seal Closure - Security - #9 - 3 7/8" Width x 8 7/8" Length - 24 lb - Adhesive - White - 250 / Box

No. 9 Double Window Security Tinted Business Envelopes are designed with invoices and statements in mind. Envelopes feature a Redi-Seal closure for the ultimate quality, durability and privacy. Side seam construction and 24 lb. bright-white stock add a modern, professional touch and a clean, crisp look. Premium security tint preserves privacy during mailing.