Free gilding action - No snagging; no effort; no hassle. These hooks feature specially engineered spherical balls to reduce friction and allow effortless gliding across the rod with virtually no effort at all.Different double sWer hooks - The double sWer curtain hooks with different heights could hang sWer liner on the Wer side, and the sWer curtain on the higher side. The sWer curtain rings are strong enough to hold a heavy curtain and a liner and also can protect the decorative sWer curtainStainless steel - The heavy duty brass and durable stainless steel construction allows years of use in the harsh room elements. The stainless steel sWer curtain hooks, non-magnetic metal, meaning it will last indoors and outdoors without rusting.Plated and black - The steel is plated without rustinMaterial with black finish. The hooks adding a very elegant look to any room.Set of 12 \\u2014 Sold as a set of 12 sWer curtain rings. Fit all standarSIZE sWer curtain rods.