Turn your Halloween drinks into creepy cocktails with our clear plastic Multi-Color LED Skull Cup. This 14 oz clear acrylic cup is perfect for serving up spooky signature drinks at Halloween and horror theme parties and events. Use our light-up plastic cup as a great prize for Halloween costume contests. Imprintable skull-shaped cups make perfect party favors for sinister soirees! Click the on/off button on the bottom of the skull stein for 3 different light functions; slow flash, fast flash, and solid lights on. Our cup comes with (3) AG13 batteries included & installed. Hand-wash only. Please order in increments of 1 glass.