Material:PS plastic Process:Semi-manual and half-mechanical Lamp bead:Single LED lamp Battery:3 x AG3 battery Duration:12-20 hours Size:3*3*3CM(1.18*1.18*1.18in) Feature: Sea animal pattern random,Magic Bathing Ice Cubes Light bath toys that will light up when exposed to water. The jelly glue inside contains a small amount of water, which is normal for water vapor to appear. A set contains 8 ice cubes, and the light flashes slowly in colorful colors. Can emit light continuously for 12-20 hours. It is powered by 3 AG3 batteries (the batteries are not replaceable). When the batteries are used up, it will not emit light. Because it is a sensor water toy, sometimes it stays on after being soaked in water You can try to dry the bottom contact points. When not playing with water, please put it in a dry place and store it in a dry place! Package Included: 1*Led Ice Cubes