Authfort 3x3 Cylinder Speed Cube & Twist 3x3 stickerelss Speed Cube Combo pack of 2  (2 Pieces)

Multi-faceted development: (1) This is a classic puzzle cube that allows children to return to tradition, play to learn and learn to play, stay away from electronic products; (2) Effectively improve concentration, response, memory, and logical thinking skills; (3) Develop your child's patience and feel the sense of accomplishment after solving the problem and increasing your self-confidence; (4) Not only for children, but also for adults to relieve stress.