This Pocket Cube Puzzle is basically a 4X4 cube inside of another 4X4 cube. Do you think you can solve it quickly? It might not be as easy as you think.
The pivoting turning mechanism is offset which makes for a very interesting design. You have to return each side of the mini cube to its original single color. That is easier said than done. It is rated Level 8 on a scale of 5 to 10 where 10 is the most challenging.
If you think you can puzzle this cube out, it is just $27.99 from Amazon.com.