Curtain Ring Size: 1.77 inch inner diameter, fits diameter 1.18 inch curtain rod. 12PCS curtain rings in the box.,Noise-Free: We insert nylon to ensure a smooth and quiet glide when opening and closing your curtains, as well as to prevent scratches to the curtain rod.,Durable Construction: Crafted from high-quality metal, our curtain rings ensure long-lasting use without rust or corrosion.,Smooth Glide Advice: Maximize curtain smoothness by maintaining ample space between the curtain rod and rings.,Attention: Ensure the inner diameter fits your curtain rod prior to purchase.