13" across the top x 14" across the bottom x 10" on the slant. White polyester fabric drum shade, unlined. Chrome finish spider fitting. From the Springcrest Collection of lamp shades. The correct size harp and a finial are included free with this shade. This plain white polyester fabric hardback drum shade has a rolled edge for a clean, contemporary look with no lining. A chrome finish spider fitting is installed. From the Springcrest Collection of lamp shades.