HIGH QUALITY MATERIALS - Our 30mm curtain rings are made of high quality iron with electroplated treatment and bright surface, the overall thickness prevents deformation and rust for your long term use. VALUE PACK - You get a total of 100 curtain pole rings, each with an inner diameter of 1.2 inch / 30 mm, a thickness of 0.14 inch / 3.5 mm and a hole diameter of 0.19 inch / 5 mm. Comes with 100 metal butterfly hooks. EASY TO USE - The metal curtain hooks easy to install and remove. Just insert the hooks into the curtain rod in order and through the curtain rod, the curtains are ready to hang, and then you can slide them easily, very easy and simple to use. WIDE APPLICATIONS - There curtain hooks have a smooth silver color surface, which can be well matched with all kinds of curtains, door curtains and shower curtains, suitable for homes, dormitories, offices, hotels, restaurants and so on. HAPPY BUYING - We strive to provide better after-sales service and offer a 30-day money back. If you have any questions or dissatisfaction with the metal curtain rings, you can ask us at any time. Our customer service will get back to you ASAP within 24 hours.