YJ TianYuan O2 Cube V2

The YJ Tianyuan O2 Cube V2 is the second 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. “V2” in the name can also be interpreted as a level of difficulty, where YJ Tianyuan O2 Cube V2 is the middle level of difficulty 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.