Rubik's Challenge Magic Rubik Cube 4x4x4 High Speed Stickerless(1 Pieces)

4 x 4 x 4 Rubik's Challenge rubik cube is 3D - combination puzzle. This cube is extremely fast with excellent corner, funrally speed rubik cube feels very flexible and very smooth to rotate. It helps to improve the hand eye coordination, mathematical and logical thinking. This cube is a brain teaser which improves cognition performances, enriches observation, coordination and recognition agility. This cube puzzle helps to increase the thinking power and develops intentional mindset.