Discover the old- world beauty of our handmade copper sinks Copper is a Living finish a non-lacquered, unprotected finish that "changes" over time. The finish changes are caused by oxidation from air and water Included: Please Note: Each sink is handmade by Skilled Artisans. Our sinks are unique and one of a kind. You will use the sink as your template as dimensions can vary slightly due to the handmade nature. Variations in the patina are normal and not considered to be a defect. We recommend a professional for installation. Use only mild soap and water with a soft cloth for cleaning.