VELUX Manual Blackout Blind DKL 102 1025 White Aluminium Finish Top Cover and side channels in anodized Aluminium. For use with wooden VELUX roof windows GGL/GHL/GPL. Block out all the light - Perfect for afternoon naps and those lighter summer nights. Just right to ensure the kids get that deep sleep they need. Blackout blinds are available in a wide range of colours and patterns. Ideal solution for bedrooms and other rooms where you need to blockout sunlight. Optimal solution for bedrooms or other rooms where you need blackout. For manual operated VELUX roof windows within reach. VELUX recommends to soften the daylight by adding a Pleated Blind to your Blackout Blind thereby optimising the room for other activities than sleeping. If you have an electrical VELUX Roof Window the correct solution will be to choose the remote controlled electrical Blackout Blind. The key benefits New slimline design Best Blackout on the market for VELUX Roof Windows Available in 40 colours Install in minutes with the unique Pick & Click! system Help to turn day into night Come with aluminium backing as standard Reduces heat gain and heat loss Available in a wide range of colours and designs Blackout Blinds are made of dirt-resistant polyester with a special heat blocking aluminium coating on the back to retain heat in the room in winter and reflect solar heat in summer.