Inspired Designs Blue Colored Ferrofluid in a Bottle Display - Magnetic Ferrofluid Decorative Magnet - Science Kit - 1 Count - Glass Bottle

I am very impressed by this little bottle of ferro.

Very cool.

The good: fun toy and great conversation starter. Got it for my desk at work so folks can fidget during meetings and such. Accomplishes this purpose well.Cons: Small! Size of hotel shampoo bottle. Also, rust is building up pretty quick. After 3 days, the liquid has a pink hue.Bonus: A back-up Sorry piece in case you’ve lost one over the years.

The media could not be loaded. Okay. Here’s some pros and cons.Pro:Fun to play withBeautifulGiftableFast shippingIncludes magnetDidnt come brokenCons:After around a 4 months of using it started to fog up and develop a weird liquid at the top. Very cool otherwise :)

The clear liquid was was very misty in the package I recieved. But overall great item.

I just received my blue ferrofluid display in a bottle and I am very satisfied with this product! it is just what I expected it to be! The best part is it comes with a magnet to manipulate the ferrofluid and make different patterns/shapes. I held my display over a flashlight and it portrayed the color of blue and purple colors combined which looked absolutely amazing! I definitely would recommend this to a friend, family member, etc. Overall I am very happy with my purchase and plan on buying more products in the future. Highly recommend this product!

Whether you're a magnet enthusiast like myself or just casually interested in magnets, this magnetic ferrofluid is well worth the purchase. Note that it is not technically magnetic itself, but rather is attracted to magnets, an important distinction.

I bought this to show my science class with the expectation that it was completely sealed with no chance of air getting in. But it arrived with an air bubble. Any exposure to air and the ferrofluid begins to rust, and after some time, there's dark red rust dust in the mix. After more time, all of the liquid is brown, and hard to see what's going on.Very disappointing and definitely not worth the price.