Light up the night at your evening celebration with these LED coasters. Each 5 1/8″ x 5/8″ plastic coaster is waterproof, so they look great while they keep your precious countertops and surfaces safe from damage. Use as a coaster for drinks, or place it under a decorative vase, plant, bottle of wine, or anything that would look great with a little illumination. Choose from three modes of operation – fast flash, slow flash, and continuous. Includes a battery, which should be removed when cleaning. Add your company logo or message for a dynamic party favor that people can take home with them, or accentuate your brand at a trade show, seminar, or other corporate function. Choose from five colors.