【DIMENSIONS】 Outside diameter: 48 mm; inner diameter: 38 mm; Thickness: 4 mm. 【MATERIALS】 durable metal compound, anti-rust and anti-rust (iron, copper, stainless steel) QUANTITY OF CURTAIN CLIPS】 20-piece set, including eyelets and removable clips. Large clip rings for hanging curtains on a curtain rod. 【ADDITIONAL HARDNESS】 Strong tension clip for stronger applications, extra thickness and hardness, durable design, stronger tension clip holds heavier curtains without problem. 【WIDE APPLICATIONS】 These curtain accessories are suitable for most types of curtains such as shower curtains, window curtains, french curtains and more. Description These curtain clip rings slide easily over any metal rod up to 1.38 " " (35mm) in diameter. With a high-voltage clamp you can easily hang a particularly heavy curtain. & Nbsp; To hang curtains with pleated needle hooks, simply remove the clip and pull the hook through the eyelet. & nbsp; The inner diameter is 38mm sizes. Please make sure the size