JAM Paper Light Gray 9" x 12" Open End Envelopes with Self Adhesive Closures are made out of smooth, high-quality, 28 lb. paper. In this pack, there is a total of 25 envelopes. Each of these envelopes measures 9" x 12" in size, which makes them perfect for enclosing standard, letter-sized documents without any need for folding or risk of creating unnecessary creases. These envelopes keep the contents placed within them secure as they travel through the mail. They also have straight flap openings and reliable, peel and seal strip closures. These envelopes feature a versatile light gray color and are an excellent choice for a variety of home and office mailing needs.Details:Light gray9" x 12"28 lb/75 gsmStraight flap openingsPeel and seal strip closures25 envelopesPaper