These are fabric sample scraps from curtains. They are thick fabrics, some with black backing, and some are satin. The long pink-gray piece does not appear to be blackout. The level of blackout capability is unknown. Measurements may have errors. There is some stickiness in two places where stickers were removed. Some pieces have holes punched in them. They have not been used, but they have been handled by others as curtain samples. Please refrain from purchasing if you are looking for perfection.