NOT EASY TO FALL OFF:This both ends of anti slip rubber of this extendable rod increase the friction between rod and wall ,the anti slip rubber making the rod tight and not easy to fall off . ADJUSTABLE SIZE:Our extendable rod fits space with more sizes at certain range ,hence it reduces the limit of application .And easy to install between two walls and doesn't require any tools . EASY TO INSTALL:The spring tension curtain rod is featuring easy and tool free installation ,it does not cause any damage to wall or closet .This spring tension rail can serve as a shower/door/closet/window curtain rod ,bathroom towel rail and wardrobe rod . EXCELLENT ELASTICITY:The inner spring of our adjustable shower curtain rod has excellent elasticity which offers enough tension to support the rod firmly .Built in strong thick spring ,adopts electrostatic spraying technology which can prevent rust . HIGH QUALITY HIGH CARBON STEEL ROD:Our shower curtain rod is made of high quality high carbon steel rod with electrostatic sprayed is anti‑rust ,smooth and exquisite .