WannaBi Set of 14 Window Drapery Curtain Clip Rings, 38mm 1-1/2 inch Interior Diameter, Premium Iron Metal Material These attractive clip rings let you easily hang your window curtains and quickly add a touch of style to your window treatments. Rings fit rods that measure up to 1" in diameter. Number of Pieces: 14. Features: Easy Installation. Care and Cleaning: Wipe Clean with a Dry Cloth.