Happy 4th of July Light Up Uncle Sam Wants You! This is a Dynamic Way to Light Up Your Head with the Good 'ol Stars and Stripes This Red White and Blue Uncle Sam Top Hat Features Blinking Lights on the Stars This Uncle Sam Hat is the Perfect Vehicle to Drive Home Your Patriotic Pride Just Pull the Tab on the Inside of the Crown to Ignite a Show of Blinking Red Lights Perfect for July 4th Festivities. This Adult Sized Hat Measures 21" Batteries Included