It's time to make everybody Green with envy with awesome Green Light Up Ice Cubes! Add the bright glowing green LED ice cubes to your guests glasses, and suddenly your party is in overdrive! Create the ultimate St. Patrick's Day event, make your green drinks even greener or create epic green lighted centerpieces! Green glow cubes come fully assembled with the batteries already installed - just push the button to Light the ice cubes up! Three different light settings are available on the Green LED ice cubes - single flash, double flash and steady light (non-flashing). The duration of the Green LED Ice Cube is 24 hours with the flash setting and 12 hours on the steady light setting, so your light up ice cubes will party all night! CrystalCubes are sealed, so they are 100% liquid proof.