MATERIAL: not easy to rust and has strong tension. The surface is plated golden and polished without any rough edges. Size: 38mm in diameter,It's applicable to the general market of curtain rod. ADVANTAGE: The curtain ring can be opened and closed, it has great locking mechanism and construction, it won't break easily and open up by themselves after using a long time. Installment: Hang the curtain rings one by one on the curtain rod, then you can put a hook or clamp on the small ring, and finally put the curtain on, you can slide the curtain easily. WIDE APPLICATION: This curtain ring is applicable to a wide range of areas. The appearance is applicable to the decoration of the living room curtain and door curtain at home, as well as the hanging of the shower curtain in the bathroom. Name: With a small ring split ring Noodle product features: a small circle is welded on the opening card ring, which is convenient for use with non-movable poles, flexible and convenient colour: silver Material: iron Package Contents: 20 * Curtain ring hanging ring Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.