first4magnets™ EFH1 Ferrofluid 20ml with 90mm Petri Dish & Pipette for Science, Education, Experiments, Students, and Teachers

Alles bestens und gerne wieder !

The fluid comes with two small screwtop plastic containers, along with a standard plastic petri dish and pipette. For the best effect I would advise putting a small amount in the petri dish, barely enough to cover the surface, and approach with a magnet from below. Be very careful, as a strong magnet from the side can easily cause the fluid to fly over the edge out of the petri dish! Be extra careful, since the fluid stains most materials, and can be difficult to wash out. The effect from a magnet is very interesting to look at. The volumes required are very small so this amount could be used to amuse quite a few people.

It’s really fun but to to expensive for what your getting and it also is extremely hard to clean I still have stains on my table but if you will buy it please be careful and don’t let it get all over your face like I did.

Desta vez chegou tudo correto conforme podem ver na foto. Obrigado pela rápida correção, e gostava de saber o que faço da embalagem estragada anterior. Obrigado

Overpriced. As a toy, they do their job.