Rainchains - Large Copper Tapered Square Cup Rain Chain - 3178-L-COPA new addition to our square cup designs. This larger sized longer square cup is made of stainless steel, then plated in copper, and finally matte brushed for a natural copper appearance that will age naturally outdoors. The seam construction makes a very strong cup. It will easily handle heavy rain. Features: High Quality Material, this chain will last for many years Includes a Gutter V hook for easy installation Works excellent in heavy rain