Package contains 12 LED glowing ice cubes with random assorted bright colors, transparent cracked ice cube shape with built-in sensitive water-activated sensor. Automatically lights up and flashes once submerged in water; turns off when taken out, no manual switch needed, super easy to operate for kids and adults. Fully waterproof sealed plastic structure, safe to use in drinking glasses, wine cups, bathtubs, showers and water pools; non-toxic and leak-free for sensory play. Perfect multi-scene decor: brighten cocktail glasses for bar parties, light up bathtub for kids’ bath time fun, ideal sensory training toy for toddlers and autistic children. Long-lasting built-in batteries support hours of glowing use; lightweight floating design, great gift accessory for birthday parties, holiday gatherings and home bar styling.