This cleverly designed card folds flat for posting. When the card is opened out and viewed with both eyes a Christmas scene is visible in 3D. Everyone has different eyesight, so to accommodate this the box can be flexed to alter the distance between the lenses and the stereo image, ensuring that everyone may view the scene in focus. The back of the card is an image of the Christmas scene. Published by Courtesy Graphics which is a trademark of The Amazing Card Company www.theamazingcard.nl.