Royal Designs Empire Side Pleat Basic Lamp Shade, Eggshell, 11 x 18 x 12 Shade Dimensions: 11 x 18 x 12 Shape: empire Fabric: hand tailored silk-type shantung fabric, premium off-white softback lining Washer: standard (0.5 inch recess) brass-finish spider fitter with trademark stamping. This shade fits using lamps with 6 in, 8 in, 10 in glass reflector/diffuser bowls Frame: heavy Grade 1.5Mm rust resistant metal Frame. Thicker than typical standard lamp Shades