FenchelShades.com 12″ Diameter x 17″ Height Drum Lampshade Retro Rustic Vintage Hardback USA Made Cream

This Fenchel Shades lamp shade has a top diameter of 12 inches a bottom diameter of 12 inches and a slant height of 17 inches. The vertical height of this shade is about 17 inches 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 hole size inner-dimension of a washer attachment measures slightly under 1/2 inch. The drop on this particular attachment is 1/2 inch. That means it recesses about 1/2 inch below the top of the lamp shade.