For the ultimate finish, why not choose the Perfect Fit blinds? This unique system requires no drilling or screwing onto the window frames. This blind system is installed ‘perfectly’ by a frame onto most UPVC windows creating a completely flush finish. The frames are available in a range of shades. Perfect Fit blinds are the best solution for tilt and turn windows, skylight windows and doors. They provide the most seamless, clutter free blind covering for any window and are child safe due to no control cords.