More fun than fright, our Silhouette Series Ghoulies is a highly animated image duo to add to the face of your home this Halloween. WOWindow Posters are backlit plastic window posters (34.5″x60″) that light up with inside lights for the surprise of passersby. Just hang them up in 30 seconds and leave your lights on. Our posters will do the rest! Our posters are the highest quality special effect available for thematic window decorating.