The product is a 190 count of standard open end Kraft flat envelopes, measuring 15 1/2 inches in length and 12 inches in width. The brown envelopes are unbranded and made of paper, suitable for various packaging and shipping needs. This product was manufactured between 2010-2013 and can be purchased at an estate sale. With a model number of wy5260, these envelopes are a practical and versatile option for businesses and individuals looking for reliable shipping materials.