Need serious light blocking for a home theater, nursery, bedroom, or office? These EverTrack blackout curtains are professionally crafted in the USA from 100% polyester fabric that's inherently flame-resistant (NFPA701 compliant for life). They're designed specifically to work with ceiling-mounted curtain tracks (like EverTrack's own system), using size 0 nickel-plated brass grommets for a smooth glide. The dimensions are 108 inches wide by 84 inches high, making them ideal for covering large windows or even creating room dividers. The fabric is completely opaque, blocking out nearly all incoming light to create a true darkroom effect. They also help with sound dampening and insulation. Despite their heavy-duty performance, they're machine washable for easy care. Perfect for shift workers, light sleepers, or anyone who wants ultimate control over their lighting environment. Invest in your sleep and comfort with these quality, functional curtains.