I'm confused that they say "red/blue" when actually they are red/blue. That's because we're too dumb to know what blue is. Spring. This is what you need when viewing 3D images. Remember that there are real red and blue glasses. You must be careful not to buy these because the 3D effect is not so good on images created for Red/Cyan. And red/cyan is used in every movie/video game/picture. In short, it's great. Sturdy, attaches perfectly to my glasses and brings 3D images to life.
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