This Shallow Oval Hardback Lampshade - Eggshell 10 x 12 x 7 is a part of Royal Designs, Inc. Timeless Hardback Lampshade Collection and is perfect for anyone who is looking for a simple yet stunning lampshade. Royal Designs has been in the lampshade business since 1993 with their multiple shade lines that exemplify handcrafted quality and value.Exterior Fabric: Silk-Type Hardback ShantungInterior Fabric: Off-White Hardback LiningWasher: Standard brass-finish spider fitter, use a finial to fasten shade Trim: Fabric on top and bottom is rolled over the edgesFrame: Heavy grade rust resistant brass frameBulb: Suggested maximum wattage is 150-watt for most sizesHeight is measured by vertical height from top to bottom, not slant of the shade"