This is such nice quality! The clamp and band are well made and powder-coated. I was concerned that it would not fit, since my railing has a rather shallow "lip," but it fits fine. It's a great size to be able to empty and replace the water daily, which I've read is best. Wonderful customer service and prompt replies to my inquiries, too, which I really appreciate. I'm looking forward to getting the heated version when it's available.