Doctor Who Color-changing 16 Oz. Glass Set of 2 Now you see it... now you don't! Two quality drinking glasses based on the Doctor Who television series. Featuring a color-changing image of the TARDIS! Now, that is cool! Color-changing TARDIS glasses! Add a cold beverage to one of these clear 16-ounce pint drinking glasses based on the BBC's Doctor Who television series and the image of the TARDIS magically changes from light blue to dark blue. As the glass warms up again, the image changes back to light blue. Now, that is cool! TARDIS stands for Time And Relative Dimension In Space. The TARDIS looks just like a wooden police phone box from the 1950s on the outside, but is of infinite proportions on the inside. This incredible time machine is piloted by the Doctor, a mysterious Time Lord, and is able to transport him anywhere through time and space, disappearing in one place and reappearing somewhere new. Produced by the BBC, Doctor Who is the longest-running sci-fi TV series in the world. The award-winning show presents the adventures of a time traveler known simply as 'the Doctor.' Along with his companions, this mysterious Time Lord journeys through time and space using his TARDIS, which appears from the outside to be an ordinary police phone booth. Hand wash only. Not dishwasher safe.