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Cast Key II
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Cast Key II

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ObjectDisassemble and Reassemble the Puzzle
DifficultyLevel 6 - Tricky
TypesHanayama Metal Puzzles, Otake & Wong
Dimensions3 in x 2 3/4 in x 1 1/2 in / 7.5 cm x 7 cm x 4 cm
PackagingCardboard Box

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Product Info

Unlock the challenge of the Cast Key II metal puzzle from Hanayama Huzzle. This intricate 3D puzzle is made from high quality metal and features a unique key design that will put your problem solving skills to the test. The Cast Key is one of the long selling puzzles among Hanayama's Cast Puzzle series. They have created this newer version of the original puzzle emphasizing style and precision, as PART II.

Designed by Otake & Wong, the object is to separate the two keys and then restore them to their initial state. It looks simple, but in fact involves a little trick. Beginners should therefore be careful not to pull them apart by force. With its sleek and modern appearance, it makes for a great gift for him or her, perfect for puzzle enthusiasts and those who appreciate a good brain teaser.

Product Details


  • Material: Metal
  • Category: Metal Puzzles
  • Difficulty Level: Tricky, 6/10.


Ideal for


  • Brain teaser puzzle lovers.
  • Adults looking for a challenging and fun activity.
  • Unique gift for him or her.
  • Children beginning to learn about metal puzzles.
  • Birthdays and Christmas.
  • Hard to buy for individuals.
  • Those who enjoy metal mechanical puzzles and brain teasers.
  • Custom puzzle enthusiasts.
  • Anyone looking for a unique and engaging gift for friends and family.

Note: Our level rating system is different than Hanayama's. Hanayama's level 1 is equivalent to our level


5, their level 6 is equivalent to our level 10.


Customer Reviews

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3.6 rating

9 Reviews

Disclaimer: These reviews are written by our customers. Puzzle Master makes every attempt to keep these posts informative and relevant. If you find a post objectionable or inappropriate, please let us know by sending an email to [email protected]

    On Sunday November 6th mzb wrote,
Beautiful finish on the keys, much darker than in the pictures. Really nice puzzle, very fun to solve. Technically ‘easy’ but it’s a level 2 so it’s as expected. Great for a fun solve and to share.
    On Sunday September 16th Lyubomir Lalev wrote,
I got this one before I have Cast Key. But I like it. For a beginner it is a very suitable puzzle.
    On Tuesday March 26th Andrew Parr wrote,
It's a nice design and an attractive puzzle, but I have to agree, it's REALLY easy. There aren't any dead ends in this puzzle, so if you are moving the pieces, you're moving towards the solution.
    On Sunday August 9th MadnessR wrote,
Yes it is simple, also easily damaged. Even the package warns not to force it. It really is a great puzzle though.
    On Wednesday July 22nd Rob wrote,
I'm pretty shocked to hear that people though this was REALLY easy. It's a fun one that you can pass to your friends and they'll solve it in one sitting- but REALLY easy? No. This might be my favorite Hanayama.
    On Thursday February 5th puzzler wrote,
good, but it was REALLY easy. I solved it in three minutes with no help whatsoever. The pieces are moderately difficult to manouver.The 'secret opening' is not really expected...
    On Thursday January 8th ddaymom wrote,
Great puzzle!! Not too easy, and not so hard as to be impossible. If you want something that will take days to solve, get another one, but this one is very satisfying for an afternoon or a day for the novice puzzle-doer.
    On Sunday November 9th Pentti wrote,
EASY. My kids ( 8 and 11) solved it in a few minutes too.
    On Tuesday October 28th Pentti wrote,
Really easy, even my 7 and 10 year old sons solved it in about 5-10 minutes.
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