Fiendish Japanese mechanical pocket puzzles

These solid metal Japanese pocket puzzles are precision crafted in Japan and are based on classic mechanical puzzles from around the world. ThinkGeek.com is offering four different difficulty levels of puzzles ranging from level 3 (solvable) to level 6 (insanely hard).

From the ThinkGeek.com

What makes these puzzles so appealing is how you always seem to be on the verge of solving them. The precision metal casting becomes apparent as you try to separate the parts of each one to solve it. They are just sooo close to coming apart you will be cringing with delight.

Here is the link to the solid metal Japanese mechanical pocket puzzles.

---