The magic ball puzzle is a great introduction to the world of rubiks style puzzles. Essentially its like a rubiks cube within a sphere, inside are coloured balls that must be moved around until they all fit within the correct circular window. The puzzle is quite tactile and requires you to really get your fingers moving to shift the balls around. These are nice and simple and a great puzzle for both kids and adults. If you are an extreme cuber these are not for you though as you will work through it in minutes easily.