Grandrich ES-252 13-Watt Energy Saving Compact Fluorescent Desk Lamp with Organizer Base Energy saving Shade: 5-1/8-Inch Diameter Double Plastic Shade with Cutout Base: 6-3/4-Inch Diameter by 7/8-Inch Height. Metal Base with 6-3/8-Inch D. Plastic Organizer Pole/Arm: 1/2-Inch Diameter by 10-1/4-Inch Length. Metal Gooseneck