Feel the power of the dark side at home with the LEGO Star Wars Darth Vader Minifigure Clock. The perfect addition to every LEGO Star Wars collection, this menacing decor features a digital, lighted display and alarm clock. The snooze and backlight functions are activated by pushing down on the minifigures head. A great gift for any LEGO Star Wars fan. This pair of three-volt lithium coin batteries is perfect for watches, fitness or healthcare devices, and other electronics. 20mm diameter and 3.2mm height.