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

Top and bottom windows positioned to the left to accommodate addressed mailing Moisture-activated, gummed flap for a secure seal Made from premium, 24 lb. white wove stock to create a professional touch for all your personal and business mailing Double-flap design with Redi-Seal closure keeps the gum from sticking before use - simply raise the lower flap and press to seal without adding moisture