• Concealed spring lock design ensures secure floor-to-ceiling tension support • Drill-free installation protects walls, ceilings, and floors from damage • Adjustable height from 4-10 ft fits varied room layouts • Expandable width 28-142 inches adapts to different spaces • 9-level quick-release design allows precise vertical height adjustment • Thickened metal tubes for stable and heavy-duty support • Each rod supports up to 45 lbs of curtain weight • Can be used with grommet, blackout, tab top, and hook curtains • Compatible with plaster ceilings, wooden ceilings • Compatible with wooden floor, marble floor, tile floor, concrete floor • Tool-free assembly with locking buckles for firm rod connection • Offer 2 installing modes: L-shape or horizontal layout • Suitable for apartments, bedrooms, and studios