These envelopes include six different bright and fun colors. Each one is made of durable, flexible plastic, has a straight flap opening and features a two button string tie closure. Use this multicolored set to color coat your documents for better organization! These envelopes will protect your letters and documents from scratches, rips, bends and dents whether they are in storage or in transit. Details: Assorted colors 9.75" x 13" overall size Fits standard sized sheets of paper 12 envelopes Letter booklet with button string tie enclosure Plastic