ZiYan- 50 Pairs - Flat- 3D Glasses Red and Cyan White Frame Anaglyph Cardboard

These worked great for our 3D movie party. Like other reviewers said, the quality of the paper is not premium. They certainly won't last forever. We stored them flat like someone suggested and have gotten several uses out of each pair. For the price point, I think the quality is okay. I would purchase these again if we need more someday! Worth the price.

Why did you pick this product vs others?: Used in an art class for a project. Nice cheap product that works.

I teach high school design and we do an anaglyph project every year. They work great for that as long as you're using the correct colors. They work for printed material as well, again with the correct colors. They're cardboard glasses, expect them to be one use. I hand them out and let students keep them. They wear them around school for weeks afterward sometimes. Some have reviewed they are hard to see through or dark. This is how anaglyph glasses work. You are blocking an entire light channel on each eye. It's going to be like tinting the world red and cyan.

Although they have two ways to fold it, they were too wide for small children (7-9 years old) to wear properly and would fall off. Despite that, it still did work to watch 3D videos on YouTube.

I bought these in bulk because I needed a bunch of 3D glasses for my students to view some 3D PowerPoint presentations I put together. First, the buyer must understand that these work for the traditional, basic 3D imagery created using red & cyan as the two primary colors involved. These won't work for 3D television programming. I happen to have a 65" 3D, HDTV at home, and those require powered, expensive 3D glasses. These aren't those. These are as basic as one can get. They're of paper composition, so if you want them to last longer, I'd recommend (a) keeping them stored in a safe place, (b) storing them unfolded, meaning the way they are shipped—all flat & elongated and put together in one stack. This will minimize their being jostled around or getting bent or damaged. When wearing them, I'd recommend putting them on by slowly and carefully using both hands to grasp the ends and gently putting over your ears. This way, you minimize those fragile ends from getting bent or smashed. Once that happens, that specific pair is pretty much unwearable and useless. Lastly, if one or both lenses becomes dirty, don't spray anything directly onto them, because that will get the paper base wet and ruin them. Instead, use something along the lines of a microfiber cloth that you'd use on your regular glasses or the screen of your cell phone. Do NOT use a paper towel or napkin (or even most kleenex tissues), because that will scratch the lense very easily. Remember, the lenses are pretty much colored plastic and will scratch in a heartbeat. Use a dry microfiber cloth to gently clean off smudges, fingerprints, and other stuff.