Tennis Anyone? Of course you'll need genuine Deep Vision 3D glasses to play. What? You don't have them yet? You can get them FREE! from us. If you can't wait and want to use that old finger marked pair you got from a cereal box, then just be sure the RED lens is over your right eye, and read the disclaimer because our tennis lady has a mean backhand. And if you don't believe us, just move your mouse pointer around the inside of the image and you'll see how far that racket sticks out!