Simply hang on your tree, unplug a light bulb from your set of lights and insert the plug into the light strand socket and Presto! The ornament lights up when the tree is turned on. The animated flashing lights mimic the iconic sign on the highway on the entrance to Pensacola Beach. A instant hit at parties, gift exchanges and they make a great stocking stuffer. Ornament works with mini type lights on standard bases. Not adaptable to larger or more retro-looking light sets. Approximately 4” tall by 2” wide.