Design:metal curtain rings with a movable loop eyelet for panel pin hooks, which can better disperse and bear stronger gravity. Universal Clip Rings: The inner diameter is 1.46 inches, compatible with up to 1 1/4" diameter curtain rod and brackets in daily life. Multiple colors available. Ease To Use : Firstly let the curtain rings go through the curtain rod one by one, secondly put the curtain hooks into the small ring, then you can try to sliding the curtain easily and smoothly. Multiuse: widely applied for shower curtain, window curtain, french window curtain, cafe and bathroom etc. Note: The clip rings must be used with the curtain rods that can be taken off. This rings can not be opened.