These magnets are strong. They can be difficult to separate, unless you used the plastic rings in between. They WILL break if not handled properly. I normally don't let students use them unless carefully supervised. They are fascinating by magnets and will forget to handle them with "care". I lost 3 magnets with a student watching them "slap" together. Lesson learned by both of us.This does not mean they are low quality. In fact, they great quality. Don't judge quality based on the abuse the product was subjected to.
Powerful Neodymium Bar Magnets With Double-Sided Adhesive - Ideal For Home, Office & Scientific Uses - Pack Of 16 Magnets
40 Review
16-Pack Powerful Neodymium Bar Magnets | MIKEDE Rare Earth 🧲 Metal Magnets with Double-Sided Adhesive | 60 x 10 x 3 mm
35 Review
60X10X3Mm Neodymium Bar Magnets 25 Pack - Strong Permanent Rare Earth Magnet With Double-Sided Adhesive For Craft, Fridge, Kitchen And Office.
30 Review
50Pcs Neodymium Magnets With Countersunk Hole And Stainless Screws - Strong Rare Earth Magnets Disc For Locker, Tool Storage, Crafts By MIKEDE
42 Review