The article under consideration is described as metal sign décor It is a decorative metal sign made from 100% iron. It is designed to be used in the home and will be sold in the seasonal section of your store. The two-sided sign sits on an iron wire base and has raised lettering that reads “Red & White Boom!” on one side and “Land of the Free” on the other. The white background color is painted onto the sign, then the contrasting red and blue coloring is printed onto the raised lettering. The stamped lettering can easily be read, even without the coloration printed on the top of the stamping. It is approximately 12 inches by 2 inches by 5 inches.
[1] Please importantly note that only the relevant portion of the related is displayed above. You may refer to the said customs ruling for the entire ruling explanation.
[1]. https://rulings.cbp.gov/ruling/N321563