Holo mesh, also known as holographic film, is a specialized material used in the production of holographic displays and images. It is typically a thin, transparent film containing microstructures or diffraction patterns that diffract light to create the illusion of three-dimensional objects or scenes. Holo film is used in various applications, such as security features on banknotes, holographic stickers, or holographic displays, adding a captivating and visually striking element to projected images or surfaces.