The Blackout Grommet Curtain Rod by Thermaplus is ideal for when you got yourself a great set of 100% total, light-blocking curtains, but somehow, the edges are still letting light leak in through the sides. All you need is our Patented Blackout Grommet Rod. The blackout rods in today's market are all plain and curved at the ends. What makes our grommet rod exceptional from all these rods on the market is that our Blackout Grommet Rod has a superior construction. The Total Blackout grommet rod is expertly designed, with not only curved ends, but it features a decorative cap finial on each end. Your curtains wrap around the corners and fold against the wall blocking out all that light for a complete 100% total blackout experience with a decorative flair.