Our flashing butterfly has high powered L.E.D.'s that light up the state of the art fiiber optic technology. Each cap is custom embroidered and is a high quality 6 panel baseball cap complete with a self adjustable strap. One size fits most. Great looking in either daytime or night and a great prize or favor. Batteries are included and installed. Price shown is for each cap. Please order in increments of 1 cap per style.