* Made of metal material, electroplate, these curtain rings are rust-proof and can be used in humid places. Fastness and durable for use. * Installation: Curtain rings go through the curtain rod, and curtain hooks into the small ring, then the curtain slides easily. * Application range: Ideal for for holding curtains, window curtains and french window curtains. Widely used in bedrooms, bathroom, living room, office, etc. * Product Name: Curtain Rings * Material: Metal * Surface Treatment: Electroplate * Big Ring Outer Diameter: * Big Ring Inner Diameter: * Small Ring Inner Diameter: 13mm / 0.51inch * Small Ring Wire Diameter: 2mm Package Content: * 7 x Curtain Rings