FIRST4MAGNETS Small Magnetic Field Paper for Science, Education, Experiments, Students, and Teachers - 50mm x 50mm

This is an interesting way to view magnetic fields. It would make an interesting teaching aid.My only slight criticism is that the image is slightly dark (low contrast) so it needs to be viewed under fairly bright light, but otherwise it is quite clear.

ordered it to reveal magnetic field of some tech gadgets, just for fun onlyit arrived in a cardboard postal envelop, inside packaged with a zip bag, i was quite surprised with its actual size and thickness, i knew it’s 5cm x 5cm before ordering it, just realised that it’s so tiny and flimsy when holding it, it will definitely go into bin if my wife found it on the floorit works as expected, clearly shown magnetic field on any surface with magnetic, but its tiny size couldn’t fully reveal everything even on small size gadget, i believe the 10cm x 10cm model will be more usableanyway, this product works as expected, i’m happy with it, would recommendhope you find these information helpful

Very small but everyone loves the little show

Brilliant stuff helped me easily locate the magnets inside my Galaxy tablet

Not really a gadget more a novelty but was cheap and nice to see positions of magnets in things like my Ipad Pro.

Small and thin, but works as expected

This is tiny not much bigger than a stamp. Read the description.

Why did I buy it? Yes it works. It's a thin plastic sheet that displays magnetism. It’s just as described. But I played with it for maybe 10 minutes tops. That’s over a pound a minute. I can’t imagine I will ever need it, even though when I saw it I just had to buy it. The novelty interest is of extremely short duration. I cannot think of any actual use for it going forwards. It will probably stay in a drawer for ever. So be warned folks.