3Pr Anaglyph Black Cardboard 3D Glasses - Red & Cyan Black cardboard frames with temples for a low-cost solution of your anaglyph needs. With red and cyan filters, the glasses can be used for either red left or red right depending on which way you fold the temples. These specially formulated and supercharged cyan (blue) filter coupled with our excellent red filter make our red/cyan the best and top selling anaglyphic 3D glasses on the planet. Two different fold-scores allow you to fit the glasses to smaller or larger viewer's heads. Made in the US