Sundour - Blackout Madrid - Plain 3-Pass Blackout Lined Curtains - 40mm Eyelet Header - Polyester PLEASE MEASURE POLE / RAIL & WINDOW DROP CAREFULLY. Fully Blackout Lined for room darkening and improved insulation. Pack contains one pair of 40mm Eyelet Woven Curtains. 100% Polyester, Dry Clean. Energy Efficient. Regulates Room Temperature. Reduces Noise. Blocks out Light. 117cm width is suitable for a window of about 120cm width. 168cm width is suitable for a window of about 170cm width. 229cm width is suitable for a window of about 230cm width. e.g. (117 x 137cm is a pair of curtains, each 117cm wide by 137cm in depth etc. Fits a window approximately 117 x 137cm).