3D Glasses - Red and Cyan Anaglyph Glasses for NASA MARS Stereo Viewing 1 Pair, Plastic Quality plastic frames with acrylic lenses for long-lasting use for internet pictures from STEREO NASA Project Provides a sharper image than cardboard glasses and longer lasting (1) Pair of high quality plastic frame Anaglyph (red/cyan) 3D Glasses with acrylic lenses Bonus velvet carrying pouch to protect your glasses See free 3D images coming from NASA