The Planetary Glass Set comprises ten glasses (one for each planet, plus one each for Pluto and Sol) representing the bodies of our solar system, very very very loosely sized to express their relative dimensions.
Very loosely. I mean, they didn't make Pluto the size of a giant fishbowl and Sol the size of a sports-stadium. Don't be silly. The eight planets are 10oz each, Sol is 16oz and Pluto is 4oz.