The Eclipse Clinton 5/8 in. Wrap Around Blackout Curtain Rod is designed to wrap around your window frame to save energy, block light, block drafts, and reduce noise. Pair with Eclipse curtain panels and shades (sold separately) to maximize energy saving, light blocking, and noise reducing features. Innovative wrap-around design helps prevent light leakage by allowing your curtain panel to rest flush against the wall for ultimate light blocking.