Kids of all ages love glow sticks, and these glow whistle necklaces are a great addition to party supplies and event essentials for Fourth of July parades and events. These glow sticks feature a blue or red glow and include a patriotic print of stars, balloons and the letters U.S.A in the center. Plastic. 7 glow whistle on a 28 breakaway satin cord. Simply snap and shake to activate the glow. © OTC