This decorative Christmas poster makes it look like you have a lit Christmas tree in your window! No need to buy a fake tree or decorate a real one! No more needles to clean up! WOWindow Posters are backlit plastic window posters (34.5"x60") that light up with your interior lights and will amaze your friends and neighbors. 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.