MATERIAL - The curtain rings are made of durable metal that can support the weight of the curtain. 12 pieces in the package, enough for daily life and replacementEXCELLENT DESIGN - Our curtain rings are chrome plated, polished and have a smooth burr-free surface to catch your curtain, no snagging, pulling and tugging of the curtain. WIDE APPLICATION - widely used for most kinds of curtains, such as window curtain, bed curtain, shower curtain, door curtain. EASY INSTALLATION - The curtain rings go through the curtain rod one by one and the curtain hooks in the small ring, then you can try to move the curtain a little Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference of light and d display, there will be a certain color difference, depending on the physical object received.