Wheather you like root beer floats or whiskey on the rocks, be sure to serve it up in a glass that will totally rock your socks. To activate your Light Up Pint Glass, press the button under the base. Set the glass on 1 of 7 different individual colors, or make it transition from color to color. Dimensions: 16 oz. filled to the brim; 6 in. tall LEDs: Red, Blue, Green Include 2 replaceable AG13 Batteries.