UpgradeLights Beige Linen 10 Inch Drum Lampshade with Uno Fitter Uno has a 1/2 inch drop and recesses part of the socket into the shade. Heavy White Eggshell lining Great for replacing a Floor Lampshade Shade Dimensions 6 x 10 x 7 1/2 Note: All lamp shade sizes are top diameter by the bottom diameter and then the height. Material Type: Linen Style: TraditionalShape: DrumSpecial Features: Brass Uno Learn more: The Uno fitter is threaded so that it screws onto the bottom end of a socket. Down Bridge arm lamps are the most common type of lamp that take a shade with an Uno fitter. Down Bridge arms are usually found on floor lamps, but table lamps can have them as well. They have a top arm which extends off to one side of the central column. Down Bridge arm lamps take a shade that is designed to push the light downward. Top Quality frames and materials