The George Nelson Bubble Lamp Saucer Wall Sconce is constructed with a 2 inch thick solid walnut wall mount and a Brushed Nickel steel arm. Shade is a taut White plastic coating over a steel wire frame. The arm has a swivel hinge and an adjustable 12 foot plug in cord with a counterweight that allows for height adjustments. This clever design allows one to adjust the sconce from left-to-right, and up-and-down, without having to change its position on the wall. Requires one 120 volt medium base incandescent lamp up to 150 watts, not included. UL listed. Made in USA. Dimensions: 16.75 inch height x 23 inch depth. Shade is 17.5 inch diameter x 7 inch height.