FenchelShades.com Lampshade 4" Top Diameter x 8" Bottom Diameter x 6" Slant Height with Washer (Spider) Attachment for Lamps with a Harp (Navy Blue) Top Diameter : 4" Bottom Diameter : 8" Slant Height : 6" Attachment Style : This Lampshade Works with Lamps with a Harp (Not Include). The Washer Attachment has a Standard 1/2" Drop, or Recess, from the Top of the Shade. Smooth Linen Fabric Exterior, White Styrene Interior