HomeConcept 161818DRLO Collapsible Drum Lampshade Premium Light Oatmeal Linen, 16" x 18" x 18" Verify size for perfect fit: shade Dimensions: 16 inch top x 18 inch bottom x 18 inch slant height. For best fit, measure you existing shade before purchase Standard washer filter: often called a "spider" Fitter, the shade will sit on top your lamp harp and is secured by a finial or cap. ONLY THE BEST: Home Concept shades only use the finest materials, from fabrics to parchments to the reinforced, heavy-duty brass frames. We want your shades to last. Professional designer quality: deluxe hardback lampshade, found in better Lighting Showrooms. Durable hotel quality shade Foldable lampshade - for easy moving and storage. Assembles in seconds