1. GET LIGHT: Does your party need some color? Get the party started with these LED water-activated ice cubes that light up in any cold drink. They look fun inside the drink! The party cubes add a unique atmosphere to any occasion. 2. COLORFUL CUBES: Each cube can change to 7 different colors within seconds. The cubes have a battery life of up to 30 hours. 3. LIQUID SENSOR: The sensor is located on the bottom of the ice cubes and lights up when it detects liquid. The liquid-activated color-changing LED ice cubes stop glowing when dry. 4. FOOD GRADE: These reusable LED drink cubes are made of food-safe polystyrene plastic and can be safely used with food or drinks. Waterproof and can be submerged in liquids, making it a fun way to enhance drinks. (NOTE: Do not insert into a hot liquid). Size: 1.06 x 1.06 x 1.06 inches 5. PERFECT FOR DECORATION: Perfect for Christmas dinners, nightclubs, bars, karaoke parties, music events, weddings, pool lighting, champagne towers, and other holiday decorations.