Shengshou 4x4x4 Puzzle cube
The shengshou 4x4x4 puzzle cube is widely regarded as a superb quality puzzle. The turning quality is truly excellent, being easily finger-trickable, making it ideal for the speedcuber and the regular puzzle solver alike. With the extra challenge brought to you when compared to smaller puzzle cubes, this is sure to give you many hours of puzzling fun, at a price that won't break the bank.
If you can solve the 3x3 puzzle cube and want an extra challenge, then this is a great first step on the road to the bigger puzzle cubes.