Material - The curtain rings are made of durable metal to support the weight of the curtains. A pack of 40 pieces, enough for daily life and replacement. DIMENSIONS - These metal curtain rings have an inner diameter of 38 mm and fit curtain rods up to 33 mm in diameter. Please pay attention to the correct size when purchasing. Excellent Design - Our curtain rings are chrome-plated and polished, with a smooth surface and no burrs, which will not snag the curtains or pull the curtains. Wide Application - The curtain rings are made of silver, widely used in most types of curtains, such as window curtains, bed curtains, shower curtains, door curtains. Easy to Install - The curtain rings are passed through the curtain rod one by one, the curtain is hung in the small ring, and then you can try to move the curtain slightly.