Silk screen is a process which is used to create prints on a wide variety of materials, from fabric to wood. Many commercial printers use silk screening to print, since it is cheap and easy, and when done well, it results in high quality prints. To silk screen, a very fine mesh is stretched tightly onto a frame. This mesh was made from silk until the mid-twentieth century, although it is usually polyester today. A negative design is created on the screen using a variety of techniques, and ink is rolled or sponged onto the screen, which is pressed onto the object being printed. Most printers use a squeegee or a similar tool to gently press the ink onto the printed product before removing the screen and hanging the print up to dry.