The Aeternus Aenigma is unlike any rainbow puzzle you've seen before. Unlike traditional puzzles that only have one colour state, the Aeternus Aenigma has two distinct colour states that change depending on the viewing angle. This circular puzzle is twice as complex as any regular puzzle, and a unique challenge from any angle. With its intricate design and challenging gameplay, the Aeternus Aenigma is sure to perplex and entertain puzzlers of all ages. So put on your thinking cap and see if you can solve the ultimate puzzle challenge. This puzzle is 23" in diameter and consists of 500 colour changing pieces.