Neonetics Neon Signs feature multi-colored, hand blown neon tubing, The glass tubes are supported by a black finished metal grid, which can be hung against a wall or window; they can even sit on a shelf, Neonetics 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, Dimensions: 18 inches L x 23 inches H x 4 inches W SKU: NNT251