Flag of Friesland Germany - Color Changing Coffee Mug

The "Flag of Friesland Germany" refers to a historical banner that was used by the medieval County (later Principality) of Friesland within the Holy Roman Empire, now part of modern-day Germany. The flag consists of five horizontal stripes in the colors of black, white, and red, arranged as follows: two black stripes at the top and bottom edges, with three equally-sized alternating white and red stripes in between. This design symbolizes the coalition of five Friesian Frisia towns under the banner of the Counts of Cirksena. The use of this flag has diminished over time, but it remains a historical symbol for Friesland's heritage within Germany.