QILERR Strong Small Tension Pole Adjusts from 40 to 70 cm, Inside and outside tube diameter: 2.3 cm Spring rods Made of carbon steel, New upgrade two non-slip rubber pad diameter increased by 28%(3.2 cm and 3.4 cm ).Contain stainless steel strong rough spring. strong telescopic force and support are enough to make the load capacity of the strong tension rod 5 times (10Kg ) of the ordinary tension rod, fully meet the useneeds you. Tension installation, paint surface, no wear and corrosion and easy to clean, can be used in a variety of wall such as wood, glass, tiles and wallpaper etc,can be used as curtain rods, shower curtain rods,clothes rods, room dividers, etc. If you are looking for powerful tension rods, then QILERR heavy duty tension rods meet your needs.