Set of 20 Premium Curtain Rings with Clips Black 1 Inch Diameter Abs Plastic Ikea products .With stylish electroplated black finish fits in any window decor . You can hang your curtains with either combination - rings with clips or rings with hooks. Inside interior diameter measures 1 inches Simply slide the rings onto your rod and attach drapery Curtain ring set includes 20 rings with eyelets and removable clips