I really like these curtain rings. You have to hook them onto an existing curtain hook or you can sew them on with a heavy carpet thread. I’m actually going to be hooking them on with a curtain hook, which I’m going to pin slightly behind each pleat. My curtains are vintage custom made (by mom!) which are very heavy. They once were hooked on to a traverse rod, but I wanted to change it up a bit! The rings appear to be well soldered, substantial in weight and all look uniform in shape & size. I’mSee full review