Ferrofluid Magnetic Display Toy – Dancing Ferrofluid Visualizer & Liquid in a Bottle – Interactive Desk Toy with Magnets – STEM Fidget Gift for Kids & Adults – 2ml

very fun toy for anyone fascinated by science, the magnets are actually very strong so be careful not to break them by smashing them together

Something my child wanted for Christmas. I didn't think he would play with it much, but he finds it very fascinating and plays with it often. To be honest, it does look like the symbiote from the marvel comics venom which is kind of cool. It was delivered in great shape and on time.

My son begged me for ferrofluid for Christmas. And was beyond happy when he discovered this is what I got him. He has enjoyed hours of fun with this stuff, making slow motion videos, and calling it his own piece of Venom ( from spider man). Though, as many reviews have already warned, I will say those magnets to click together real easy. And this causes them to chip real easy. So be careful.

Great educational tool and toy.

Cool to look at and have, but it's not as needed as you think 😂 more desk junk

My 16 year old son is incredibly hard to buy gifts for, but he really enjoyed this one. We had a house full of science & math people for Christmas, even the 30 year olds were playing with this stuff.

This is a simple but really clean and tidy way to see how ferro fluid reveals a magnetic field. It's much more sensitive than plain old iron filings. Being contained in a bottle, it's much tidier than raw ferro fluid, which is super messy if you're not super careful. One warning they don't give you is that the bottle cap just screws on (or off) and, if this is given to children, they might unscrew the cap which would release the fluids all over the floor and make one heck of a mess. They don't give any information about what hazard this might be. If nothing else, the ferro fluid will never come out of the carpet.My bottle arrived with an air bubble, and the vendor responded nearly immediately with an offer to send a replacement. I'm very happy with this interesting scientific novelty and the vendor that sells it.

Grandson loved this