Rainchains - Zen Loops Bronze Link Chain - 6886-BRZYou asked for a thicker Zen loop chain than our copper version. This is much thicker, each link hand cast in aluminum, than powder coated satin bronze. The bronze looks more brown in strong light and almost black in dimmer light. The vertical bars help water flow downward. The links are easy to assemble using our patented "Wedge Gap" design. Includes a V Hook for Easy Installation Technical Specifications: Diameter: 3 1 8" Thickness: 3 8"