OPI Chrome #CP003 - Great Copper-Tunity It is double duty chrome that works with both gel and lacquer. It is professional use only system that transforms nails with attention getting chrome effects whether they love gel or classic lacquer services. Long-wear opi quality formulas Apply simply over gel and lacquer 2 plus weeks of wear with opi gelcolor and up to 7 days of wear with opi nail lacquer Stay true color Easy removal.