Make a tequila toast raising a Frosted LED Margarita Glass with Classy Black Base! This elegant light glass illuminates from the bottom of the cup, while the stem stays sleek and dark. Frosted LED Margarita Glasses look festive at Cinco de Mayo, adult birthday parties and black tie events. To activate your LED Margarita Glass, first connect the stem to base (necessary to provide you safest/cheapest shipping possible). Press down hard when connecting cup to base; creates essential tight seal! Push button on underside of base to set glass on 1 of 7 individual steady colors, or set it on a color change function. Dimensions: 6.9″ tall, 4.6″ wide and 10 oz. filled to brim. LED Colors: 1 Blue, 1 Red, 1 Green. Frosted LED Margarita Glass comes ready to use with 3 replaceable AG13 Batteries. NOTE: Never put lighted glass in dishwasher. Gentle hand wash ONLY + keep moisture away from base to avoid contact with batteries. “Glasses” are made of high quality acrylic that is FDA approved.