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SYRLIG Curtain ring with clip and hook, black, 11/2" - IKEA
50/25pcs Curtain Rod Ring Clips with Hook, EEEkit Rustproof Metal Drapery Ring Hanger Clips with Eyelets, Curtain Rods Hangers Rings, 1.26in Interior Diameter 1.5in Outside Diameter, Black/Silver - Walmart.com
allen + roth 10-Pack 1-in Gunmetal Zinc Curtain Ring with Clip in the Curtain Rings department at Lowes.com
Mode Premium Collection Flat Steel Curtain Clip Rings for Curtains, Fits Mode Premium and Acrylic Curtain Rods, 1 5/8 In | Wayfair