The Kodak Royal Gold family is a series of color films from Kodak. They date from the 1990s. Later they were sold as part of the Kodak Select Series, at least according to the print on the film packaging.
Kodak advertised them as a unique balance of fine grain, sharpness, color reproduction, and contrast, to deliver results with excellent clarity and enlargement capability. The films can be used both in daylight and with flash.
The Kodak Royal Gold films were produced for 35mm cameras. They can still be developed today using the C-41 process.