Brain, skill and dexterity developing puzzle, supportive and fun-to-play-with. The Marusenko Sphere is a unique ball-shaped puzzle which is divided into eight octants by three perpendicular cuts and moves just like a 2?2?2 puzzle ball. Unlike other puzzle balls, this puzzle also has 24 pieces arranged in 6 circular faces. The Marusenko Spheres are divided into 5 levels of difficulty. This sphere is a Level 4 puzzle and has up to 242,418,070,100,640 permutations! Each sphere comes nicely packaged with a stand and protective transparent case, which makes for a great display item.