Theater curtains are large fabric drapes used in performance spaces to conceal the stage from the audience before a show begins. They can be made from various materials, including velvet and polyester, and are often designed to enhance the visual appeal of the theater. The curtains can be opened and closed using a system of ropes and pulleys, allowing for smooth transitions between scenes. In addition to their practical function, theater curtains also play a significant role in setting the mood for a performance. They can be found in various styles, such as the classic proscenium curtain, which frames the stage, or the backdrop curtain, which serves as a scenic background.