3 years & up. Light up the water with colorful, smiling Glo Pals that activate when they get wet. Use these delightful characters in the bathtub to keep your child so captivated with the water they won't want to get out or incorporate them into your sensory learning plans. As soon as they leave the water, they turn off. Perfect for water tables, bathtubs, baby pools, or anything filled with water. LED lights that turn on and off automatically. Each cube has a battery life of 16 - 18 hours. Includes 4 Green cubes.