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Your cart is empty.Quality Park 10" x 13" clasp envelopes are a necessary staple for filing, storing or mailing documents at home or in the office. Metal clasps let you open and reseal the projects you’ll need access to frequently. A deeply gummed flap with moisture-activated adhesive keeps your catalog envelope ready to mail with a secure, aggressive seal. Made of heavyweight 28 lb kraft paper. These classic manila envelopes are the workhorse of the office—opaque to keep private contents concealed for all your interoffice memos and business mail. These no frills mailers still make cost-effective and sturdy shipping envelopes. Or, use yellow envelopes as a quick way to sort and organize paper. Keep large envelopes on hand to store letter-sized documents, certificates or tax records flat without ugly folds and creases. Ideal for home office organization, home school uses or business mail. 100 Per box.