10" dia., I.E.S Opal Reflector 2 and 1/4 ID" fitter( 2 3/4 OD, 10" dia. white opal glass reflector shade, Waffle pattern. 5 1/2" ht. replacement glass for the old 6 way floor lamps that have a Glass reflector that holds the lamp shade and most the time has a Mogul bulb inside