Formula YJ Moyu Crazy Yileng Fisher Cube 3x3x3 57mm Speed Cube Puzzle Black .Fun twist to traditional 3x3x3 cube .The cube uses an angled 3x3 design top and bottom .When solved it's a square cube, but when twisted results in odd shapes. .Great for Speedcubing and Beginners .Solve it when each side matches and A challenging puzzle