50 Pack Metal Curtain Rings 38mm Internal Diameter Curtain Pole Rings Silver Hanging Rings for Curtain Poles,Shower Curtains Rods and Drapery Slides Freely: The surface of the curtain rod rings are polished and burr free, with a smooth surface that slides smoothly on the curtain rod. The curtain ring hooks have a small hole for hanging various types. Size:outside diameter is approx. 46 mm/ 1.81 inch, dimension inside diameter is 38 mm/ 1.49 inch fit for less than 30 mm/ 1.18 inch curtain rods, please make sure the size befor you buy it . Easy to use: Our curtain rings and hooks are easy to install and remove. Simply slide the curtains through the curtain rod one by one, and then hook the curtain hooks into the small rings of the curtain rings to slide the curtains easily. Wide Applications: The glossy decorative curtain ring is perfect for hanging weighty curtains, tapestry, shower or window curtains, and thick hangings in home and commercial spaces such as bedrooms, living rooms, lounge, hotels, offices, and more