These should not be called blackout curtains because they do not block light very well. They block about as well as any medium thickness curtain would. Each panel is simply a big piece of polyester. They are not worth 42 a piece. They are probably not worth half that. The photo Im uploading was taken at about 9am, with the blinds part way up. It was sunny out, but the window was not in direct sunlight. I got these curtains to make the room dark so that my babies will sleep well, and now Ill need to find something else.