Each Cappa curtain rod from Umbra is made of high-quality metal and individually checked for quality assurance. This set conveniently adjusts and gives you the flexibility to accommodate 1 or 2 curtain panel configurations depending on your needs. Cappa supports a variety of window fashions including light to medium weight curtains with a max weight of 22 lbs. (10 kg). Plus, everything you need to get it set up fast comes in the box including matching metal finials, adjustable wall-mounted curtain rod brackets, screws, drywall anchors and easy-to-follow installation instructions. This adjustable curtain rod works with a variety of decor styles and can be used with grommet, back tab, rod pocket and tab-top curtains. Single rod brackets sit 4-in (10 cm) from the wall, double rod brackets sit 6-in (15 cm) from the wall. Note: 1-in (2.5 cm) diameter rod includes a 3/4-in diameter back rod, 1.25-in (3.2 cm) diameter rod includes a 1-in (2.5 cm) diameter back rod. 36 to 66-inch models include 2 brackets all others include 3 brackets.