This item was a gift for my son and his wife (and their cats).  I was there when they installed them. They seemed very nice, easy to clean. The curve at the end of the bracket seeemed odd to us, and the position of the velcro strip seemed a bit further from the edge than was ideal for their narrow window ledges--(the narrow ledges were why they asked for these in the first place). I hope they work well and the cats enjoy being able to look out the windows in their new home.