These envelopes are made out of smooth, high quality paper. Each one features a basic, versatile brown kraft color. These envelopes feature commercial flap openings and reliable gum closures to keep the items placed within secure as they make their way through the mail. The size of these envelopes makes them fantastic for letters, checks, save-the-date cards, documents, forms, and much more! Use these brown envelopes to mail a variety of items form your office or home!Details:Available in multiple countsBrown kraft manila4.75" x 11" (#12) size28 lb. (105 gsm)Paper