The FlipKlip Book Holders keep your book open on a desk or tabletop for hands-free reading! Use it anywhere you need your hands free while reading a book. Useful at the office, at school, on the bus, train, or airplane. Take it to the gym, use it for a treadmill book holder. Read a book while eating lunch. Works on paperbacks, hardcover books, catalogs and magazines. Helps relieve hand cramp from holding your book open by allowing you to hold the book on your open palm.