The Esselte Ess-57738 Twin Pocket Portfolio with Fasteners is a high-quality office supply designed for organizing and storing important documents. With a sheet size of Letter (8.5" x 11"), this portfolio is perfect for professionals who need to keep their files neat and tidy. The fasteners ensure that your papers stay securely in place while the twin pockets provide plenty of space for additional documents. The Esselte brand is known for its durability and reliability, making this product a great choice for any office setting.