EUDAX Labs Junior Science Magnet Set for Education Science Experiment Tools Icluding Bar/Ring/Horseshoe/Compass Magnets

I’m a physicist who spent over ten years developing high-speed magnetically levitated flywheels. I just needed a marked color magnet so bought this kit for next day delivery. I noticed that someone had trouble levitating the spindle because a rubber band was missing (any small rubber band will work). But another thing to be aware of is that the 4 stationary magnets may not stay fixed in the base (with pole orientation all pointing the same direction). Slipping a couple sheets of paper when the magnets are pressed into the base will help tightly secure them (see photo). And the magnets need to all be pressed all the way down, at the same height. Also, playing around with the axial orientation of the magnets on the rotating spindle makes a big difference in the stability of the unit (rotor spindle magnets need to also point the same direction as base). I like teaching physics and think this is a fun little package for children to explore, and recommend it. An interesting “thought experiment” is to visualize the magnetic flux field lines (think of the orientation of the iron filings by the bar magnets). This helps to understand how the spindle stays levitated (by imagining the field lines); and why the spindle is only stable with one point fixed (the pin-spindle interface). Otherwise, the stationary magnetic suspension here is unstable.

This little kit really surpassed my expectations. We do remote learning and I needed a magnet before the next morning. Options were limited and although I was looking for a cow magnet, this kit looked interesting so I took a gamble. Despite the price, nothing in the kit is cheap. It comes with instructions for a few different experiments, which the kiddo thought were really cool. The horseshoe magnet is weaker than I would have expected, but the ring magnets stacked together seem to have the same amount of force as a small cow magnet. So glad we took a chance on this, it had what we needed and so much more. These will be a go-to for years to come.

The media could not be loaded. This set is fun, but not the highest quality magnets. They work well enough for us to have plenty of homeschool pre-k fun, as I’m able to easily guide my daughter through each set up. It’s also fairly small, but again, that’s fine because it’s for a 4 year old to handle. we’ve had trouble getting the magnet car to really go forward, rather than twist (see video). Overall, it’s worth the low price for a fun learning activity.

The Horse shoe magnet was broken on delivery, but my son has still had a blast playing and learning with this kit. The pieces are quite small, so not appropriate for younger learners that cannot keep objects out of their mouths. The circle magnets especially are the size/shape of candy.

I got this magnet set for a 9 year old boy - he loves it!! He spends time building and experimenting with the magnets. I would not suggest it for little kids - but even from 5 on up it is well worth the cost. And one interested in magnets this is a great beginning kit - lots of different items to do things with. He has a wonderful time with it.

I am 53 years old. I bought this so that I could play with it. I am not disappointed! It's fun. It has some pretty great experiments with instructions also.

I don't know why but this was the only set available with those typical horseshoe magnet which I wanted, I bought the whole set which I didn't mind too much because the other pieces were fun, but this whole thing is extremely poor quality, the box latch was broken, the horseshoe magnet was broken as well.

Perfect starting kit for my 7 yr old grandson