Just a really need toy to play around with. Size is matching expectations from videos, and adequate to really enjoy the ferrofluid experience.
It's a cool design and such, but a majority of my fluid rises to the very tip-top of the device. Light ran out of battery already, should come with rechargeable light or have one installed within the device. Top of glass could be taller so you can actually see it from the top.
All pictures on instagram make this product seem far larger than it is.
I bought this for my brother as a birthday gift. He absolutely loves it! Such a cool product and happy with my purchase. The only thing that wasn't great was that the light does not come attached to the container and it died after a couple days but no big deal. We got a replacement light and its all good now. I would recommend this product for anyone.
I really like the clever design of this product. the screw thread makes for a fascinating parade of ferrofluid spikes. I feel kind of picky when I point out that the glass bottle is optically quite poor. It looks like an ordinary food quality container. I would be much happier with the little gadget if it cost 50$ more and had a higher quality container.