Using these curtains is a breeze. Just use the hook top to hang them up in your desired location. They're perfect for adding style and blocking sunlight in any room. When it comes to washing, first separate them into dark and light color batches to avoid color bleeding. You can machine - wash them in cold water on a gentle cycle, but make sure the water temperature doesn't go above 30°C. Don't worry about small size errors of ±3 cm, as they won't affect how well the curtains fit. Remember, each set comes with two panels. If the set size is 118 inches wide by 106 inches long, each panel is 59 inches wide by 106 inches long. Also, keep in mind that there might be a little difference in color between what you see on your screen and the actual product because of monitor variations.