Formula? ShengShou 5x5x5 4x4x4 3x3x3 Magic Cube Set - White Set of 3 ShengShou brand cube ,Includes ShengShou 5x5x5, Fifth Generation 4x4x4, 3x3x3 Full Sealed magic cube Smooth turning and excellent rotation Made of environmentally friendly ABS plastic International standard color stikcers Practice your brain and improve your memory and hand skills