Lookout, more zombies are pushing up against the glass! Fill your house with Zombies this Halloween and frighten all who walk by. WOWindow Posters are backlit plastic window posters (34.5"x60") that light up with inside lights for the surprise of passersby. Our posters are the highest quality special effect available for thematic window decorating. Just hang them up in 30 seconds and leave your lights on. Our posters will do the rest!