This set includes four wall-mounted support brackets made from durable aluminum alloy with an anodized silver tone finish. Designed to fit rods measuring 16x30mm (0.63x1.18 inches), each bracket features an adjustable height range from 84mm to 105mm (3.31 to 4.13 inches) by screwing the lower half into the upper half. The brackets have a rod inner size of 16.5x31mm (0.65x1.22 inches) and a rod diameter of 10mm (0.39 inches). The mounting base width is 18mm (0.71 inches) with a 5mm (0.2 inches) diameter mounting hole. These sturdy brackets are suitable for supporting curtain rods, wardrobe rails, partition curtains, balcony clothes poles, bathroom shower rods, closet rods, kitchen hanging rods, and towel bars. Easy to install, they can be mounted on drywall or walls, providing a reliable foundation for various hanging objects. For heavier loads, additional brackets are recommended.