George Williams founded the YMCA in London, England in 1844. Today, it's a worldwide movement of national and local organizations open to all. This kit includes two signs, a rooftop YMCA that comes with a second set of contacts so it can be mounted flush against the front of your building if desired. The second sign is double sided with the YMCA logo. Each includes a battery holder and all necessary electronics for plug-and-play installation. Requires AAA batteries (not included).