Independently U.S. laboratory tested certifies this curtain is 99.8% efficient in blocking out light! This heavyweight curtain panel features a superior, triple weave fabric construction that blocks out light and stops heat and cold from penetrating through the density of its construction, which invisibly integrates black yarn into the pattern of colored yarns. This curtain has a beautiful floral design that compliments any room and matches back to all neutral colors. This 52" wide curtain panel is soft to the touch and compliments any room decor. This panel has a grommet top and tie-up feature. This tie-up panel has a length of 63" with four ties measuring 38" in length for an adjustable decorative bow tie look. Each curtain panel has 8 grommets (1.5" inside diameter). It also features 1" side hems. A blackout curtain that really works! This superior fabric is 100% easy-care polyester. Machine washable. Tumble dry low. Imported.