Ferrofluid Kit, Sealed Bottle & 2 Magnets

I picked up this FerroFluid Display Toy mostly out of curiosity, and it honestly exceeded my expectations. Right out of the bottle, the ferrofluid reacts smoothly and dramatically to the included magnet. The magnet is strong enough to create sharp spikes and flowing movements without feeling out of control or messy, which makes it really satisfying to play with. From a functional standpoint, it works exactly as advertised. The fluid moves cleanly inside the sealed bottle, and the response time to the magnet is instant. You can create all kinds of shapes just by changing distance and angle, which keeps it interesting longer than I expected. Value-wise, this feels well worth the price. It’s not just a desk toy it’s entertaining, visually impressive, and sturdy. I’ve had it handled by kids and adults, and it’s held up well with no leaks or cloudiness so far. The bottle feels durable and well sealed, which was one of my bigger concerns going in. For kids, it’s a ton of fun, but there’s also real educational value. It’s a great hands-on way to show how magnetic fields work, and it naturally sparks questions and curiosity. It’s one of those STEM toys that doesn’t feel forced you’re learning without realizing it. Overall, it’s a unique, durable, and engaging little display that’s equally good for learning, stress relief, or just something cool to mess with on your desk. I’d definitely recommend it if you’re looking for something fun, educational, and different.

This was a great stem find for me and my kids. They saw a youtube video about ferrofluid and were instantly obsessed. I saw this online and thought it would be a cool way to show it’s properties. they keep playing with all day and are amazed by the motion of the liquid. It’s definitely a cool hands on play and becomes a good show piece aswell.

This magnetic display is simple to use and offers a fun way to observe how the ferrofluid reacts to magnets. The sealed glass container feels sturdy, and the movement is smooth and interesting to watch. It also works well as a desk display or for learning about magnetism. Overall, it is an interesting and well-made product.

My daughter asked for this for her birthday. It has been a great purchase, especially for the price. We did return the first purchase because the two magnets were broken, but for the replacement we decided to only use one magnet. If you do use both, just try to make sure that they don't touch as them clasping together is what can cause the breakage. Overall, she still pulls this out often even after several months, and it facinates everyone from young kids to adults.

It really caught my children's attention, so we took a little first step into the world of science :)

I got this as a stocking stuffer along with books on states of matter for the kiddo in my life. I was disappointed to notice two things upon checking it: 1 - There are two spots inside of the bottle where the ferrofluid seems to be "stuck". No matter how many times I pass the magnet over it, it won't collect it all. It's a bit distracting. 2 - Some other folks mentioned a dirty air bubble that floats around. It seems there to stay. This would be great without those two quirks

Awesome toy. My kid loves it. I love it. Everybody that we've shown loves it. Its a conversation piece for sure. Highly recommended.

My review is more about the lack of warnings about this product than the actual quality of the product. My 6 year old dropped this and broke it on a vinyl floor. After the fact we had to do research and this stuff is almost impossible to remove from surfaces, clothing, fabric, and even the skin if it happens to get on someone. The listing and product just says wash with soap and water, but that’s not actually going to work. You will have to use all kinds of extensive cleaning methods and even then it’s very possible that the stain will be permanent. We got fairly lucky that it didn’t get on anyone’s skin, but I think this product needs clear warnings and cleaning instructions considering it comes in an easily breakable glass bottle.

Pedí este adorno de escritorio de Ferrofluido porque me pareció algo único y diferente. Es de plástico al parecer impreso en 3D color azul y tiene dos soportes para colocar los dos imanes, además tiene vidrio donde contiene el ferrofluido y viene con dos pares de imanes, cosa que me gustó mucho por si se te llega a perder alguno. Yo lo tengo en mi escritorio para esos momentos muertos dodne tengo tiempo libre o para liberar el estrés. Resulta ser muy interesante ya que al acercar un imán al ferrofluido comienza a acercarse a él y hacer formas diferentes, un poco de figuras geométricas entre más cerca lo pongas. Se siente de muy buena calidad y puede servir también para escuelas o maestros que quieran enseñar a sus alumnas como funciona este fluido. Yo sí lo recomiendo ya que es un producto único y que pocas personas conocen.

✅ The provided magnets were very strong. ⚠️ Be careful where you park them! ✅ The ferrofluid physical properties and behaviour was incredibly fun. ✅ The ferrofluid was stored in a glass chamber. ✅ The green containment was actually a nice 3D printed plastic housing. It was lightweight and durable. The finish was somewhat unrefined but grippy. Nonetheless, it performed its job wonderfully and it protected the chamber. ❌ The magnet handles finish was unrefined plastic. Functional, but aesthetically less pleasing. SUMMARY: The ferrofluid desk ornament is a fun discussion and fidget piece. It is unique and should last.

I ordered this ferrofluid display STEM desk ornament for my 5-year-old child, who had always wanted one after watching videos on YouTube. The toy itself is quite small and contains liquid with a black magnetic fluid inside. It comes with four strong magnetic sticks, so the whole family can play with it together. From my video, you can see my child and I each using a magnet to attract the ferrofluid, and it forms different moving shapes, which is very fun to watch. My child absolutely loves it, and it also works as a simple educational STEM toy to demonstrate how magnets interact with magnetic fluid. It feels like a mini version of the larger displays you might see in a science museum.

Básicamente un juguete de escritorio con el que puedes estar jugando en tiempos muertos solo para desconectarte un poco. Supongo que también tiene utilidad para el tema educativo pero yo solo lo adquirí por curiosidad. Es tema de conversación, cualquier persona que llegue a tu escritorio a verlo inmediatamente preguntará que es y se pondrá a jugar con él. Le quito una estrella por la falta de documentación...aún y cuando no es como que necesitas un manual, en la caja solo viene el juguete y no tiene ni un solo papel, si quiera diciendo si el contenido es tóxico o algo similar (investigue y parece ser inofensivo). El vidrio es sumamente grueso por lo que no me preocupa que se quiebre aún y si se cae. Sin embargo...no lo recomendaría para niños muy pequeños.

I ordered this 100ml ferrofluid display to add a unique, visually striking element to my desk setup. I love having interesting tactile objects around my workspace to look at when I need a quick mental break from looking at screens, and the unique interaction of magnetic fluid seemed like the perfect fit. Housed in a vibrant blue frame, watching the black liquid spike, dance, and transform whenever a magnet gets near is absolutely mesmerizing and serves as a fantastic, stress-relieving curiosity. Pros: Mesmerizing Visual Effects: The ferrofluid responds instantly and sharply to magnets, shifting from a smooth liquid pool into complex, spiked geometric patterns that look like something straight out of a sci-fi film. Striking Frame Aesthetics: The 100ml display is perfectly sized for a desktop without cluttering it, and the bold blue frame adds a fantastic pop of color that frames the internal physics beautifully. Educational & Fun: It serves as a wonderful, hands-on STEM piece that naturally sparks curiosity and conversation for anyone who sees it sitting on your desk. Cons: Glass Staining Risk: If you leave the ferrofluid resting against the glass wall in one position for too long, it can occasionally leave behind a faint residue or stain, so it requires regular movement to keep the glass crystal clear. Strong Magnets Required: To get the absolute best spikes and fluid motion, you need high-quality magnets, which have to be handled carefully near other desktop electronics or metal gear. Overall, this ferrofluid display is an incredibly cool, high-quality desk ornament that perfectly bridges the gap between scientific demonstration and interactive art. It provides a genuinely unique, hypnotic distraction that breaks up long focus sessions beautifully. If you want to elevate your desk setup with a piece of interactive, retro-futuristic physics, this blue-framed display is a definitive 5-star addition to your workspace.