About this product: ?MATERIAL: These curtain rings and clips are made of strong metal, it has the characteristics of rust, corrosion resistance and is not easy to deform. ?SPECIAL OPENING DESIGN: Smooth without burrs, this curtain ring with a strong clip can be opened, so you can replace the curtain without removing the rod which is very convenient for you. Can slide the curtain easily. ? FROM THE RANGE: Widely applied for heavy curtains or light curtains, good for bathroom, bedroom, hotel, restaurant, etc. Not only can be used for hanging curtains, but also can be used for hanging home decor. ?SIZE: Curtain Rings Internal diameter is 38mm, suitable for 33mm curtain rods. (Please confirm the size before purchasing). Color:Black. Feature: --- Brand new and high quality. --- Smooth without burrs. ---Not only can be used for hanging curtains, but also can be used for hanging home decor. ---You can replace the curtain without removing the rod which is very convenient for you. Size: Internal diameter: 38 mm, Outer diameter: Curtain clips: approx. 9 * 18 mm. Package including: 20 x Curtain Clip Rings. Note: Please do not put your fingers into the clip. Due to manual measurement, please allow a slight error, thanks for your understanding. Note: The data is manual measurement, please allow 1-139cm error, due to the light and screen differences, there will be some color difference, the specific received in kind prevail.