Rod diameter 3/8 in. (10 mm), with a thin diameter. The adjustment range of the rod is 18 to 30 inches, doesn't work if it's outside this range 2 Pcs in the package, comes with mounting hardware, including screws, anchors, and installation instructions, both suitable for wood and drywall. Drilling needed, not suitable for metal doors All-metal material (steel rod, aluminium bracket), matte painted surface, highly durable Curved end design, smooth without sharpness, wrapping curtains around the window from end-to-end It can be used as small curtain rod for sidelight window, small window, French door, front door, and also can be widely applied in kitchen, bathroom, dining room for hanging things