QYR47 28mm Aluminum Alloy Single Double Curtain Rod Set is made of Aluminum Alloy material and has 28 mm diameter, 1.5 mm thickness. There are 3 colors for you choose. The surface is produced by Electrophoresis. QYR47 curtain rod is capable to support 35 kg curtains and could be used for more than 15 years. This curtain rod set can make your room more beautiful, you will like it.