The George Nelson Bubble Lamp Saucer Pendant was designed as one of the first bubble lamps in 1947. Shade is made from a taut White plastic coating over a steel wire frame with canopy and accent finish in Brushed Nickel. Available in four sizes. Small size requires one 60 watt 120 volt medium base incandescent lamp, not included. Medium, large and extra large sizes require one 120 volt medium base incandescent lamp up to 150 watts, not included. UL listed. Made in USA. Small, medium and large sizes include a 6 foot field adjustable suspension cord. Extra large includes a 9 foot field adjustable suspension cord. Dimensions: Small: 17.5 inch diameter x 7 inch height. Medium: 25 inch diameter x 10 inch height. Large: 35 inch diameter x 14 inch height. Extra Large: 50 inch diameter x 22 inch height.