Once the Extra Long Tension Rod is tightened in between two walls this basic rod will be locked in place. Prior to locking in place put the Blackout Curtain on the rod. Once on the rod, insert the rod in between your wall set-in dorm window. In place, the rod will hold your Blackout Curtain and your room will instantly block 99.99% of all sunlight. Or, if you're off campus and need a shower curtain rod, this rod can go the distance.
This is an essential for hanging Blackout Curtains. What's essential is the fact these tension rods won't in any way damage your dorm walls. Using tension technology these rods hang without any concern of fines from wall damage.