Buy JAM Paper 5.5" x 7.5" Brown Kraft Open End Recycled Catalog Manila Envelopes at Michaels. com. Each one of these envelopes opens on the shorter end and features a reliable, easy-to-use, self adhesive peel-and-seal closure to keep the contents placed within secure as they are transported through the mail. Each one of these envelopes opens on the shorter end and features a reliable, easy-to-use, self adhesive peel-and-seal closure to keep the contents placed within secure as they are…