Pull the Exclusive Home Vesta Heavy Top Curtain Panel Pair closed to keep out the light to set the mood for a mid-afternoon nap or keep your television screen glare-free. Able to block up to 99.9 percent of light, these curtain panels are interwoven with Thermax and Lightblock, the latest in UV-blocking fiber technologies. The curtains are finished with matte silver grommets that allow for effortless hanging.