Rainchains - Medium Pure Unfinished Copper Square Cup Rain Chain - 3121-M-COPA new, unfinished copper square cup rain chain in a medium size. Simple, beautiful, and will age naturally in its outdoor environment. These cups are very strong and no welding is required to make them. Large nuts and thick wires complete this robust product. Will handle all rainfall conditions. Features: Made of pure copper. High Quality Materials, this chain will last for many years! Works well in heavy rain Includes a Gutter V hook for easy