This rain chain is constructed of a thick, pure aluminum 5/16"chain, then powdercoated with a bronze matte finish. Lightweight and stiff, this value priced chain will add a designer look to your gutter system. Powder coating is a type of coating which includes metal that is applied as a free-flowing, dry powder. The coating is typically applied electrostatically and is then cured under heat to allow it to flow and form a "skin". It is usually used to create a hard finish that is tougher than conventional paint. Powder coating is mainly used for coating of metals. Available in several length options, this chain comes with a matching installation kit for optimal water flow. Rain chains usually ship within 2-3 days.