Mostly for kids. Only for display--spectator CANNOT take whole puzzle and frame and try it for himself. For that drawback I give 3 stars, though the initial effect is perplexing. But, like all puzzles, the spectator's next move is to TRY IT HIMSELF, which will burst the bubble of amazement when you won't let him do that.

It's fine. One of the tiles has a little ding in it (didn't seem enough to warrant an exchange).
Not too difficult - just don't show the frame beforehand. But the reaction is just a polite "well, that was nice". Not sure it was worth the cost. YMMV.

I purchased this with the assumption it's simply a slight modification of Professor Spellbinder's 'Winston Freer's Tile Deal' which in turn is a modified but examinable variation of Winston Freer's 'Tile Puzzle', which originally brought a frame into play with these kinds of puzzles. If you know the mathematics behind the principle utilized in these geometric curiosities, Tenyo has built a cleverly gimmicked frame and case that burns that bridge in even the minds of those in-the-know. Winston Freer himself would be stunned with this one. Well done Tenyo!

The entire puzzle (case and all) measures 4 3/4" X 5 1/2". The tile puzzle is perplexing enough for lay people , using just the 7 pieces, they can be tossed in any pocket (they're tough plexi-glass) and performed anytime the heart desires. The frame itself isn't needed for the geometric puzzle to work, its only purpose is to create the additional illusion of the puzzle's dimensions remaining unchanged as each additional piece is 'absorbed' into the puzzle. This is where Tenyo cleverness comes to play.

Of the new line this is my favorite and I think a definite Tenyo collector's piece. Very highly recommended. Pre-order now!

Just had good reviews and it's on the top seller list so I was expecting it to be much better. The trick works exactly as it's supposed to. However, it's made of cheap plastic and the gimmick is easy to spot. This is the quality of the product you would buy in a cheap Dollar Store or from China on eBay. I will probably never use this except for with very small children. In my opinion this item is worth $10 at the most and yes I am taking into consideration that when you buy magic most the time you're paying for the knowledge not the item itself. Long story short I'm pretty disappointed with this one.

But a clever-ish one. Adjusting frame size?
Not fir ne

I love this little puzzle! It is not something I would perform professionally in a show, but it is great to have at home on the coffee table or in the office to show people something baffling.

The instructions are in Japanese but with all of the photos, they are very easy to follow if you want the video on penguin and look at the photos in the instructions.

It is very well made and although the price is a little on the high-end for a "plastic toy", that is the same for most Tenyo products if you buy them outside of Japan. And Penguin is offering a very good discount on the item! It is also much cheaper than the other version out there (Transparent Fit Puzzle) which retails for $110. So a bargain compared to that.

1. Since you need a table to show a 5" object,
so probably 8 sepctators the most.
2. It works better with red color paper under it
~ when showing 6 pieces assembled.

* It comes with Japanese instruction with info to
download it's English version ~ but I can only
get it from Tenyo's home page (via Google）

the instructions are in Japanese. My Japanese isn't too good.