Royal Designs 12" Rectangle Cut Corner Lamp Shade, Black with Mica, (6.75 x 5.25) x (12 x 8) x 9 (DBS-710-12BLK/MICA) Shade Dimensions: (6.75 x 5.25) x (12 x 8) x 9 (top x bottom x height) Shape: rectangle 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