ArtSkills Poster Board Lights, One String Contains 20 White Lights, 1-Count (PA-2095) Enhance the look of your project with Poster Board Lights that will make your project stand out! Ideal for arts and crafts projects, posters, signs, school projects and educational activities One string contains 20 White Lights with 2 modes, steady and flashing For best results, use on rigid board; Simply poke holes through the poster board and feed the lights through with the string left in the back of the poster Requires 2 AA Alkaline Batteries that are not included Ideal for school projects, poster boards, yard sale signs, event signs, and more