About this item Material: The curtain rings are made of durable metal which can support the weight of the curtains. A pack of 20 tablets is enough for daily life and replacement Size: These metal curtain rings have an inner diameter of 38 mm and fit curtain rods up to 33 mm. Please pay attention to the correct size when purchasing. Color: Black EXCELLENT DESIGN - Our curtain rings are chrome plated, polished and have a smooth, burr-free surface that will grip your curtains without snagging, pulling and tugging. Wide Application: Widely used in most types of curtains, such as curtains, bed curtains, shower curtains, door curtains. Easy to install: The curtain rings pass through the curtain rod one by one, the curtain hook inserts into the small ring, then you can try to move the curtain slightly.