VERIFY SIZE FOR PERFECT FIT: 18" Top x 18" Bottom x 10" Slant Height STANDARD WASHER FITTER: Often called a "spider" fitter, the shade will sit on top your lamp harp and is secured by a finial or cap. Include heavy duty brass frames and fitters for long-lasting quality. ONLY THE BEST: 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 White Linen shallow drum lampshade, found in better lighting showrooms. Durable Hotel quality shade. MAKE SURE TO MEASURE: For best fit, measure you existing shade before purchase. The third dimension in the slant height of the whole shade, not the distance from bottom to fitter. The White Linen Shallow Drum Lampshade from HomeConcept is iconic in shape, timeless in appeal, and sleek in overall design. Home Concept Signature Shades feature the finest premium linen fabric. This fabric is ideal for drum lamp shade shapes. Durable Upholstery-Quality fabric means your new White Linen shallow drum lampshade will last for decades. It wont get brittle from smoke or sunlight like less expensive fabrics. Heavy brass and steel frames means your shades can withstand abuse from kids and pets. It's a difference you can feel when you lift it.