JAM Paper Clear Cello Sleeves with Self Adhesive Closures are made out of clear, high quality cellophane plastic. This pack contains an even total of 100 envelope sleeves. Each one of these cellophane sleeves opens on one of the shorter ends and has a straight flap with a reliable, easy to use, self-adhesive peel-and-seal closure! Because these envelopes are fully transparent, their contents can easily be seen from the outside. Each one of these sleeves are great for enclosing standard sized and slightly larger sheets of paper! Use them to protect flyers, for sale signs, and more! Details: Clear 10" x 13" 100 cello sleeve envelopes Cellophane plastic