Jam Paper brown kraft #12 commercial business envelopes are made out of smooth, high quality, 28lb paper. In this pack there is a total of 50 envelopes. Each one measures 4.75 X 11 inches in size and 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 excellent 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! Size: 4.75 In. X 11 in. | Color: brown kraft | quantity: 50/pack