Product dimensions measured on a flatly laid out product.
Tip: measure an item of clothing at hand to compare.
Carl Sagan Voyager Golden Record
The Voyager Golden Records are gramophone records which were included aboard both Voyager spacecrafts, which were launched in 1977. They contain sounds and images selected to portray the diversity of life and culture on Earth, and are intended for any intelligent extraterrestrial life form, or for future humans, who may find them.