Fangs like these only come out at night, and we’re sure thankful they do. Nothing says party like super bright, led flashing lights coming out of a Vampire’s mouth. Simply press the activation button on the inside of the mouthpiece and you’ll be the coolest Vamp on the block. The long-lasting led lights flash in multi-colored bursts and light up the entire mouth. The mouthpiece works best in dimly lit environments and goes with any outfit. We strongly give this party attraction two fangs up! Batteries included.