This 10 oz. wine glass won't leave your customers anything to "wine" about! Made of clear acrylic, this handy item features three high-powered LED lights (green, blue and red) that flash in seven unique color combinations. What a great addition to birthday parties, weddings, nighttime cocktail parties and more! Batteries are included, installed and replaceable. For increased brand exposure, customize each glass with an imprint of your company name and logo. Cheers to this great item!