Struggling to solve the classic 2×2 or 3×3 Rubik’s Cubes? The Rubik’s Apprentice is a step-by-step puzzle designed so that you can later take on the more complex Cubes with ease. This activity Cube 3D puzzle is the easiest to solve of the Rubik’s collection. Puzzle-loving adults and kids ages 7 and up will love this anxiety relief fidget toy travel Cube.