1 5

Tube of 20 Neodymium Magnets

Tube of 20 Neodymium Magnets


    Our mighty 4mm cubic rare earth magnets are incredibly useful, mesmerizing to fiddle with, and a steal for only 5 bucks for a tube of 20.

    We had these custom manufactured to the highest magnetization the factory could concentrate into the small space. 

    Made from a neodymium (Nd) alloy, these magnets each have about a 4lb pull (direct metal-to-metal contact). They are nickel coated since the magnetic material is a highly compressed powder. 

    *NOT A TOY. NOT FOR YOUNG CHILDREN. DO NOT SWALLOW*

     

    More info:

    Only a few elements are naturally magnetic at room temperature. Neodymium is not one of these elements; however, in the 1980s, General Motors found that an alloy of neodymium, iron, and boron (Nd2Fe14B) not only produces a magnet, but its crystal structure causes it to be an especially strong magnet. 

    Also called “rare-earth” magnets since neodymium is in the group of elements called rare-earths.

     

      $5.00
      $0.00 $5.00
      Sale Sold out
      Shipping calculated at checkout.

      View full details

      Collections containing this item: Bestsellers | Items ≤ $20 | Magnetics | Newest Listings | Physicsfun | Trinkets |

      Customer Reviews

      Based on 4 reviews
      100%
      (4)
      0%
      (0)
      0%
      (0)
      0%
      (0)
      0%
      (0)
      i
      i. (Oklahoma, United States)
      Its nice

      i really like them there fun to play with.

      A
      A.L. (Texas, United States)
      Powerful tiny magnets

      I bought these to use with some magnetic sand, and they work wonderfully. I drop one down a thin test tube so I can wipe off the sand easily afterward, plus it shows well against the glass. Great value for 20 of them.

      K
      K. (Wisconsin, United States)
      Perfect

      Just what I was looking for. These are nice strong little magnets. Came promptly. Love this shop!

      J
      J.M. (New York, United States)
      Fun magnets

      This is a neat set of neodymium magnets that I have on my desk at work, they are a minor conversation starter but are also great for implanting inside 3D prints.

      AUTHENTICITY GUARANTEED

      We only list verified authentic items. We work with reputable collectors, and regularly consult with our network of scientists and experts.

      If we aren't 100% confident, it doesn't make it on our site.

      • Free Worldwide Shipping

        Orders over $50 qualify for free US shipping.
        Orders over $100 qualify for free global shipping.

      • Secure Payments

        Pay how you like: credit card, PayPal, After Pay, Shop Pay, Apple/Google/Meta Pay, crypto & more.

      • Simple Returns

        Change your mind? No problem. Enjoy easy returns within 30 days.

      similar items_

      WE TAKE SCIENCE SERIOUSLY

      You deserve better than craft store science products. That's why Stemcell exists. We're dedicated to providing the best scientific products available—whether they're collectibles, activities, or just stuff for fun.

      With every new product launch, our list of new ideas gets longer rather than shorter. So check in often for our latest projects, and thanks for being a part of our endeavor to make the world a smarter place to live.

      Believe in yourself; for everything else, there's science.

      — TERRY MUDGE

      FOUNDER & SCIENTIFIC DIRECTOR