With their sturdy and secure tension-mount installation, Mainstays Heavy Duty Tension Window Curtain Rods make it easier than ever before to update your room and window décor. No drilling and no tools are needed to install the curtain rod in your window space. The 1-in. diameter rod was designed to securely hold any standad curtains or panels. The adjustable rod is available in 2 sizes to suit your window needs: The smaller rod expands from 28 to 48 in., and the larger rod expands from 48 to 84 in. Select your desired size and either a black or white rod above to best complement your room and window curtain choices.