Transform your roof windows with Bloc skylight blinds in Dark Grey blackout fabric. Designed to fit Velux windows perfectly, these blinds are easy to installno drill requiredand offer excellent value. The Dark Grey fabric blocks unwanted light for a darker, more comfortable room while the white thermal backing keeps your space cool in summer and warm in winter. The brushed seal system creates a tight barrier against light and heat loss, combining style and functionality in one sleek design. - Bloc Blinds Blackout Blind for Velux Roof Window - Dark Grey in Silver - Size: U04