Enhance your 3D viewing experience with 3D Anaglyph Glasses. Anaglyphic glasses are used for viewing print, movies, websites, games, and computer applications in 3D and is defined as two views of the of the same subject (either moving or still) in contrasting colors and slightly offset for two different perspectives. The principle of optical filter achieves 3D effect. Polarized 3D glasses create the illusion of three-dimensional images by restricting the light that reaches each eye. This pair of red blue 3D glasses provides a sharper image than cardboard glasses and longer lasting. And these red blue 3D glasses are high quality plastic framed glasses with hard lenses (not cardboard). This pair of movie 3D glasses is comfortable for you to wear it. Folds and stores easily and lightweight. You cannot miss it!