This item is a single pair of ChromaDepth 3D image glasses manufactured by American Paper Optics in Bartlett, Tennessee. These glasses are designed for use with television and are specifically made for viewing content in 3D. With ChromaDepth technology, the glasses create a 3D effect by using different colors to make images appear to have varying depths. These glasses are a unique piece of television memorabilia, perfect for fans of 3D entertainment looking to enhance their viewing experience. This pair of glasses are made out of paper board with blue and red lenses and the frame is a dark blue and black with the letters CGW for Computer Graphics World and has the words AutodDesk on the inside of the frame as these glasses came from Computer Graphics World Magazine and were sponsored by Autodesk, the company that makes 3D Software such as Maya, AutoCad and 3D Studio Max among other 3D Software Applications. These glasses are in mint condition, like new and come shipped in a plastic envelope by first class mail delivery. How these glasses work The depth 3D glasses create striking 3D images from normal 2D images by pulling forward the color red to the foreground and sorting the remaining colors according to their position in the rainbow. ROY G BIV! (Red, Orange, Yellow, Green, Blue, Indigo, and Violet). The depth process encourages fantastic 3D illusions without compromising the quality of the image when viewed without the glasses. This pair of 3D depth glasses can be used to view Movies, Videos, Television * Television Commercials * Laser Shows * Internet Web site Viewing * Children's Books, Magazines, Comics * Brochures * Geographical Mapping * Corporate Presentations * Medical Imaging * Science Activity Kits * T-Shirts Posters * Great for Halloween Spook Houses The ChromaDepth process encourages fantastic 3D illusions without compromising the quality of the image when viewed without the glasses. - These all new ChromaDepth glasses create striking 3D images from normal 2D images by pulling forward the colour red to the foreground and sorting the remaining colours according to their position in the rainbow. Please let me know if you have any other questions and thank you for your interest and bid / purchase. The Team from Scenic Earth Studios Fine Art Gallery