Subway Shaker is a sure fire way to get some attention in the bars. The light consists of two parts, one that contains liquid and other that support lights. After filling liquid to the container, it is closed by screwing the two pieces to form a ball. It is crafted beautifully using aluminum, Led light and spherical shaped glass. The rolling light creates an effect of “light in movement” with the color of light matching the color of your cocktail. Receive your drink in style as it rolls over from the bartender to you rousing excitement and exhilaration from all ends. This looks like so much fun, I want one. Fantastic product design.