The Neon Signs feature multi-colored, hand blown neon tubing. The glass tubes are backed by a beautiful full-color image, and the entire sign is supported by a black finished metal grid. The sign can be hung against a wall or window; they can even sit on a shelf. The Shaped Polly Gas neon sign has bright red, yellow, white and green neon, with a full color background. All The Neon Signs have a warm mesmerizing glow, and are powered by industrial strength transformers, which operate silently and more efficiently than incandescent bulbs. All you do is hang it up and plug it in – no assembly or special wiring required. For indoor use only.