A shape-mod version of the traditional 3x3 puzzle, the Cubing Classroom Mirror 3x3 V2 (Green) is solved by shape instead of color. Better corner-cutting, more stability, and smoother turning are all features of this version's revised mechanism, which improves the solving experience. A popular option for puzzle fans and collectors both, the cube's different block sizes provide a distinctive challenge as it gets more and more jumbled. It's ideal for anyone who want to assess their problem-solving and spatial awareness!