I have recently bought these magnets and just started to wonder how much fun we could get playing with these kind of powerful magnets. It all draws down to one's own creativity to come up with different shapes with these magnets. The delivery came to my office and as soon as I opened it, I could see my colleagues playing with the magnets for long time with so much resistance to leave it and go back to work. Only thing I was bit surprised with this product was the magnetic balls size. Although the manufacturer clearly stated the dimensions, the images for this product are bit misleading as the balls appear to be bigger in the images but are very small in reality. So, this is not a product for very young kids as they could easily swallow a magnet ball (hence this product is recommended for 14+ years old).
Overall, I am so happy with this product and it is just too much fun to play with these magnets
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Updated - 27/09/2011
Earlier I have mentioned that the images are bit misleading with respect to size of magnets. Thanks to whoever has added a recent image (1st image) for this product which gives a clear reference on the size of the magnet balls.
So now I have nothing to complain about this product. Absolutely a great and entertaining gift to anyone.
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