JAM PAPER Plastic Envelopes with Zip Closure - Letter Booklet - 9 3/4 x 13 - Clear - 12/Pack Color: Clear Size: Letter (9.75 x 1.25 x 13 inches) Quantity: 12 per pack Our booklet style zipper envelopes feature a smooth finish and 1 inch expansion These high-quality poly envelopes are great for staying organized at home, the office, or school