Material:Made of premium metal.Durable and rustproof.The curtain ring is well polished and the surface without burrs. Opening design:The ring can be opened and can be used directly on a fixed rod. This way the curtain can be replaced without removing the rod. Curtain Clip Set: 40 silver curtain rings and 40 curtain clips included. Inner Diameter of Metal Ring 35mm/1.38inch.< /p> Wide Application: Perfect for hanging curtains, home decor, window treatments, shower curtain. Perfect for restaurant, meeting room, bedroom, bathroom, etc. Easy to install: Just pass the curtain rings through the curtain rods one by one, and hang the hooks of curtains in the small rings of these metal curtain rings, then you can slide the curtain easily.