Review on 👓 ZiYan- 50 Pairs - Flat- 3D Glasses Red and Cyan White Frame Anaglyph Cardboard - Perfect for Immersive 3D Viewing by Andrew Agarwal

I bought them in bulk because I needed 3D glasses for my students to watch some 3D PowerPoint presentations I made. First, the buyer needs to understand that they are working with traditional 3D base images created with red and cyan as the two primary colors involved. They do not work for 3D TV programs. I have a 65 inch HD 3D TV at home and they need expensive powered 3D glasses. They are not. They're as simple as it gets. I would recommend (a) storing them in a safe place, (b) storing them unfolded, which is the shape they come in - all flat and oblong and assembled in a stack. or bent or damaged. When wearing them, I would recommend putting them on slowly and carefully, grasping the ends with both hands and gently slipping them over your ears. This way you minimize the bending or breaking of those brittle ends. In that case, that particular pair is practically unwearable and useless. Finally, if one or both lenses are dirty, do not spray anything directly on them as this will soak the paper base and ruin it. Instead, use something like the microfiber cloth you would use for your regular glasses or your phone's screen. DO NOT use paper towels or napkins (or even most paper napkins) as this scratches the lens very easily. Keep in mind that lenses are mostly made of colored plastic and can be easily scratched. Use a dry microfiber cloth to gently remove smudges, fingerprints, and other dirt.