MAYTEX Smart Rods Superior Hold Tension Stepped Window Curtain Rod, 18" - 28", Black EASY TO INSTALL: The convenient, adjustable tension rod doesnt require any tools, have it up in minutes. NO DAMAGE: Featuring rubber grips that won't damage your walls. The decorative stepped finial will accentuate any style curtain ADJUSTABLE: the tension rod is adjustable and extends from 18 inches - 28 inches DURABLE: Made of metal and holds up to 10 pounds DIAMETER: 5/8-Inch diameter rod