When people get together at an event or congregation. The exits must be open in the event of conflagration. Hopefully a flashing fire engine will arrive. The firemen will rescue all and all will stay alive. Height: 1.12 in. , 2.84 cm. Width: 2.0 in. , 5.08 cm. LED Colors: 1 Blue, 2 Red, 1 White, 1 Yellow Batteries: Includes 2 Replaceable CR927 Batteries.