MATERIAL - The curtain rings are made of durable metal that can support the weight of the curtain. 60 pieces in the package, sufficient for daily use and replacements. DIMENSIONS - The inner diameter of these metal curtain rings is 38mm, suitable for curtain rods up to 33mm. Please ensure correct size compatibility when purchasing. EXCELLENT DESIGN - Our curtain rings are chrome plated, polished, and feature a smooth, burr-free surface to prevent snagging, pulling, or tugging of the curtain. WIDE APPLICATION - The curtain rings are silver and widely compatible with various types of curtains, including window curtains, bed curtains, shower curtains, and door curtains. EASY INSTALLATION - The curtain rings slide easily onto the curtain rod, and the curtain hooks attach to the small ring, allowing smooth movement when opening or closing the curtain.