4.7~4.9mm Neodymium NIB Magnet Spheres with Steel Case - Black (216-Piece Pack)

Pros: - very strong magnets; - great hobby for all ages; - good quality (you can handle the balls smoothly); - it enhances your creative skills.

Cons: - a little expensive for a toy; - sometimes it is hard playing without some type of card to separate the magnets (very strong magnets);

Other: If you want something to play and to pass the time, then I recomend you buy it. I bought two and I sold one of them to my friend. He is addicted!

Pros: The magnets are cool and there a lot of them.

Cons: I have two other sets of the Neodymium Magnet Spheres and these are not as strong of magnets. It is pretty hard to build things with them because the reverse polarity sometimes makes it hard and the magnets are not as strong so that makes it hard to make shapes etc. I was/am disappointed in the strength level of the magnets since in the description is says they are ultra strong. They are not near as strong as SKU 13503 which are also described as ultra strong.

Other: They are ok, again, if they were as strong as SKU 13503 they would be much better.

Pros: -It is strong enough to hold all the little balls together, and also strong enough to make the cube and some other shapes, like triangles. -It´s really fun to play with it, you can spend several hours playing. -It´s Anti-Stress, because it makes you think only in the magnets and forget about anything else

Cons: -If you saw the famous video on youtube, you will think that its bendable, or you can open the cube in half without breaking it... But certainly, with this one, that its impossible -It´s not as plated as others. One ball came more plated than the rest

Other: Nice thing to buy if you have enough money to spend on a grown-up toy

Pros: Lots of balls.

Cons: I don't know the reason, if the balls are too strong or not strong enough or because of polarity, but just like user toolow61 stated, it won't work. It's impossible to make any shape out of it because the balls won't stick side by side. Some of them does, but others would stick in a interlaced mode, so you can't really make equal lateral lines, therefore you can't build the cube form (it came in that form, but it wasn't perfect). The balls in the egdes will come out, no matter what you try.

Other: It's not worthy, because I couldn't make the shapes as in the pictures. Maybe some users were lucky to do it, but I wasn't.

Pros: English
The magnetic force is really strong, sometimes hard to separate them. You can make many shapes and designs with this toy, it's beautiful, and gives to make decorations for the house. Children are very curious about the magnetic forces, perfect to teach them about it.
Portugues
A força magnetica é realmente muito forte, as vezes dificil de separa-las. Pode-se fazer muitas formas e desenhos com este brinquedo, é bonito, e dá pra fazer enfeites para casa. crianças ficam muito curiosas com as forças magneticas, ideal para ensina-las a respeito disso.

Cons: English
The price is high. The spheres are very small, and if separated can be lost.
Be careful when joining them, as the force is strong, they lose the chrome when then collide.
The number of spheres could be higher, I'll buy more.
Portugues
O preço é alto. As esferas são muito pequenas, e se separadas podem perder-se.
Tenha cuidado ao junta-las, como a força é forte, elas perdem o cromado quando se chocam
a quantidade de esferas poderia ser maior, vou comprar mais.

Other: English
is a curiosity for all ages.
(CAUTION with children under 3 years, the balls can be swallowed and cause welding of the intestinestaking to death.
some children have died from swallowing magnets neodymium) CAUTION, the DX does not put any warnings about this danger, not the site or the product, perhaps because there is no law requiring it to do in China
Portugues
é uma curiosidade para todas as idades.
(CUIDADO com crianças menores de 3 anos, as esferas podem ser engolidas e causar colamento dos intestinos, levando a morte.
algumas crianças já morreram por engolir imâs neodimio) CUIDADO, o DX não coloca quaisquer avisos sobre este perigo, nem no site nem no produto, talvez porque não existe lei que obrigue a fazer isso na china