100% Recycled Brown Kraft Redi-strip Envelope, #10 1-2, Cheese Blade Flap, Redi-strip Closure, 9 X 12, Brown Kraft, 100-boxCatalog envelopes with Redi Strip closure and heavyweight 28 lb wove stock for home or office mailing, storage and organizing. Keeping your home or business organized is imperative! Whatever your needs, catalog envelopes are a must for keeping projects, files and mailings manageable. These heavyweight catalog envelopes are made to withstand extensive handling, as well as mailing. Seam Type: Center; Flap Type: Cheese Blade; Trade Size: #10 1 2;