A huge nine-layer magnetic dodecahedron puzzle designed for professional solvers and collectors is the YuXin Huanglong Petaminx M. It contains built-in magnets that help keep each layer straight as you spin, and it comes in vibrant, stickerless colors. It rotates easily and feels surprisingly sturdy in your hands, considering its small. Resolving it is both a gratifying experience and a significant challenge. Fans of high-layered megaminx-style puzzles will find this problem to be a daring addition to any collection.