High quality and extreme comfort - For Anaglyph (red/cyan) movies such as: Shrek, Shark Boy & Lava Girl etc that use the red/cyan Anaglyph format * Can be used with field sequential movies, if you FIRST convert the movie to Anaglyph * The paper glasses that come with the Anaglyph movies are not as good as these. See sharper & clearer with ProX * 3D Glasses must fit the 3D Format of the movie/game - these glasses only work with red/cyan or red/blue movies - Anaglyphic * There is no diopter correction in these glasses.