Order dispatched very quickly,bit of a mess up over delivery, stayed in all day on the Friday they were due to be delivered as I wanted to fit over the weekend, gave up at 18:00, went out and found card saying that they had tried to deliver at 18:10 so had too wait until Monday. No matter, arrived early on Monday, first window I had to shave a couple of millimeters of the vertical struts to get them to fit but second blind fitted perfectly. Very important that you centre the blinds in the slide bar otherwise the don't close straight and light comes in on the shorter side. Once sorted they work really well. At almost one third of the price of Velux originals - great value for money. Awarded 5 stars on that basis. Just ordered two more for another room.
Two days later....The two more I ordered arrived next day! Excellent service. Both now fitted in about 20 minutes which included removing the old ones. Both fitted perfectly and I am now convinced that there was no need to shorten the struts on the first one I fitted, there is a knack in fitting the side struts into the blind housing, got it now after four, they just need pushing under the lip on the blind housing which I failed to do on the first. So, great purchase and five stars all round! Highly reccomended.