YJ TianYuan O2 Cube V1

The YJ Tianyuan O2 Cube V1 is the first cube in the series of puzzles from YJ that all resemble a cube with a ball inside that can spin independently from the outside of the cube. “V1” in the name can also be interpreted as a degree of difficulty, where YJ Tianyuan O2 Cube V1 is the easiest to solve out of the three puzzles that make up the series. The puzzle itself is surprisingly easy and smooth to turn, with a stable and high-quality feel.