FenchelShades.com 17 in. Top Diameter x 17 in. Bottom Diameter x 9 in. H Linen Black Drum Lamp Shade

This Fenchel Shades lamp shade has a top diameter of 17 in., a bottom diameter of 17 in., and a slant height of 9 in. This attachment is called a washer attachment and is nickel in color. It is also known as a spider attachment. If your lamp has a harp, then you will generally need a washer attachment. The inner-dimension of a washer attachment measures slightly over 1/2 in.