Rain chains: A beautiful and functional alternative to traditional, closed gutter downspouts. Guiding rain water visibly down chains or cups from the roof to the ground, rain chains transform a plain gutter downspout into a pleasing water feature.
Rain chains are a stylish alternative to downspouts. When water empties out of the gutter, it clings to the chain until it reaches the ground. A catch basin lets it gently spill over to prevent erosion. via : my home my style