The FanXin HuDong is a huge step for FanXin hardware. This version comes with the LBL Designs HuDong Magnet Upgrade Kit installed, which makes the puzzle smoother and more flexible without compromising stability. It replaces the 8-magnet ball-core with a 20-magnet version, which also has wider magnets to make the feel more consistent throughout turns. This upgrade also has the foot magnets from the edges removed to make the cube smoother. To recover the lost stability, we replace them with stronger corner-edge magnets.