Royal Designs HB-614-16LNWH Square Hard Back Lamp Shade, (15" x 15") x (16" x 16") x 10", Linen White Shade Dimensions:(15x15) x (16x16) x 10 (Top) x (Bottom) x (Height) Shape: Square Fabric: Premium Linen Fabric, Premium Off-White Hardback Lining Washer: Standard (0.5 inch recess) brass-finish spider fitter w/ trademark stamping. (Shades with 9"+ top diameter have a V-Notch fitter for use with a 6" or 8" reflector bowl) Frame: Heavy grade rust resistant metal frame. Thicker than typical standard lamp shades