String and button Kraft Envelopes evoke nostalgia and ideas of importance. The Midori Kraft Envelopes are made with the same techniques, with the addition of quality and a change in color. Enjoy the updated brown envelope with the same classic button and string closure and vertical orientation. Use the envelope to collect small treasures like stamps or buttons. Or use them for practical purposes like storing coupons or gift cards. Eight envelopes come in a package. Each envelope measures 4.7 by 3 inches. Envelopes are too small to be put through the mail without inserting into a larger envelope.