"Novelty Retro" is a fitting description for this clock. The hour markers of the clock are illuminated from within and gradually transition between blue, red, and green. The clock measures 19" in diameter and features a brushed metal dial with clear plastic spokes. The clock is powered by one AA battery to keep time (not included) and one AA adapter (included) to power the internal LED lights. The clock will keep time even if its internal lights are turned off and looks very sharp either way.