"This Rectangle Hardback Shade is a part of Royal Designs, Inc. Timeless Hardback Shade Collection and is perfect for anyone who is looking for a simple yet stunning lampshade. The Rectangle Hardback Shade follows these dimensions: Length & width of the top rectangle, length & width of the bottom rectangle, and finally the height (top x bottom x height). Royal Designs has been in the lampshade business since 1993 with their multiple shade lines that exemplify handcrafted quality and value. Dimensions: (6"x12)"x(8"x14)"x10" Exterior Fabric: Silk-Type Hardback Shantung (except Linen fabrics) Interior Fabric: Off-White hardback lining (Black fabrics have gold lining)Washer: Standard brass-finish spider fitter, use a finial to fasten shade. (All shades with 9 in + top diameter have a V-Notch fitter for use on a 6 in or 8 in reflector bowl) Trim: Top and bottom trim (single or double) with vertical piping Frame: Heavy grade rust resistant metal frame Bulb: Suggested maximum wattage is 150-watt for most sizes (clip on shade max 60W) Height is measured by slant height from top to bottom of the lampshadesfront facePlease measure your existing shade--a replacement harp may be needed for a proper fit or additional adjustment if changing height of shade"