Availability: In stock

Tesseract Cassette: 864 Rainbow Neoballs



We usually ship within 24 business hours. Shipping is a flat $5 for all US Domestic orders. Free shipping on orders over $100.


We usually ship within 24 business hours. Shipping is a flat $5 for all US Domestic orders. Free shipping on orders over $100.



Rainbow of colors // mixing, blending, painting Earth // Diverse tapestry.

Haiku by Annalise Brigham


Comes with:

  • 108 Yellow 5mm Neoballs
  • 108 Orange 5mm Neoballs
  • 108 Magenta 5mm Neoballs
  • 108 Red 5mm Neoballs
  • 108 Purple 5mm Neoballs
  • 108 Blue 5mm Neoballs
  • 108 Cyan 5mm Neoballs
  • 108 Green 5mm Neoballs
  • Child Safe Case
  • The ability to summon Leprechauns


Finally available; the Rainbow Neoballs set. We heard your requests and have delivered. A perfect way to add color to your magnet collection, or start a magnet collection for that matter. Inside is a total 864 magnet balls with a palette of colors wide enough to create whatever you want.

There are 6 hexagons (18pc) of each color; all the colors needed to color a unicorn mane. We've got Yellow, Orange, Red, Magenta, Purple, Cyan, Blue, and Green. Eat your heart out R.O.Y.G.B.I.V. This magnet set is screaming for your creativity and innovation. There are plenty of fun color combos to work with and discover. Be sure to check out the Gallery for inspiration on colorful builds!

The best part of the Rainbow Tesseract Cassette is that their colors won’t fade with normal use! Please don’t subject these little things to hard impacts or fast speeds-- that’s just not what they’re built for. If used gently like the precious gems they are, the coating can last for years.

All Polymer Neoballs feature a ± 0.05mm tolerance, meaning that due to manufacturing differences between spheres, Neoballs and those who love them can count on a variation in diameter of at most 0.05mm. Don’t worry, you won’t be able to tell. We’re just magnet sculpture nerds who care probably a little too much.


Magenta Neoball Corrosive Resistance

Not susceptible to oxidation, rusting, tarnishing, and moisture erosion, this coating is very strong.


Magenta Neoball Geometric Tolerance

Okay shape and size consistency of magnets. The size variance of these magnets is ± 0.05mm. Currently, this is the tightest tolerance available for this style of magnet.


Magenta Neoball Impact Hardness

Some shielding to collision, scraping, hitting and dropping. These magnets will not withstand high speed impacts, collisions, or rough kneading without chipping or denting coating.


Magenta Neoball Abrasive Strength

Very good strength against rubbing, wiping, brushing, and kneading.




Customer Reviews

Based on 42 reviews

Tesseract Cassette: 864 Rainbow Neoballs


Very fun to play with. The colour starts to come off though. Might as well just get plain silver.

Coolest thing ever

I've had neodymium magnets before and I decided that I would get more. I wanted a lot to start with and I love the colors it comes with. I love putting things together and these magnets make it hard to put down. Definitely going to get more to make bigger structures.

Ok product

The shipping email was comical. Clearly set the right expectation. However the product that arrived was nog what was pictured. It was as if someone took each color and simply put them in balls and smashed them into the tub. I spent 45 minutes picking each color apart as I had plans to disburse them to other family members. Maybe it was dumb luck but the presentation of the delivered product was sub par. Maybe some foam insert or cotton may help prevent that. Also. I see my son taking his (other brand) and making perfect straight lines and then making them into cubes no problem. I can get them to form straight lines to a degree but for some reason these magnets do not want to keep the end ones together. I always have one magnet at the top of each row that ends up forming a diamond. When I take this magnet off the entire top of the row separates. If I twist the magnets to try and get them to stick to each other they will not do it. I'm not sure I'm entirely satisfied with this product with its delivery but the service was great. It is fun to play with.

Absolutely enthralling!

I lost several hours to these as soon as I sat down to play with them. What I thought might take only a half hour ended up being past 2 hours - and that was before I realized I was designing my sphere wrong!

Great fun. Loved these when I was younger, and I'm so glad they're back and going strong. Definitely will be getting even more along the way!