Doctor Who Color-Changing TARDIS 2 oz. Glass Set of 4 Color changing! Four quality mini-glasses based on the Doctor Who television series. Featuring color-changing images of the TARDIS and series logo! Now, that is cool! Add a cold beverage to one of these clear 2-ounce mini-glasses based on the BBC's Doctor Who television series and the image of the TARDIS or series logo 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. Do not microwave. Thoroughly hand wash before first use.