Brew up some fun with our LED light up skull mug! This 16 oz. plastic beer glass turns into a flashing multi-colored light show with the push of a button that allows you to select between three different modes: constant, circular and blinking. The lighting component on the bottom of the cup detaches for easy cleaning. This is a great option for Bar Mitzvahs, sorority and fraternity functions, night clubs and more! And, since each piece comes with included batteries and packaged in an illustrated box, they're event-ready for any gift-giving function.