Review on Magnetic Educational Learning for Enhancing Creativity and Imagination by Donny Collins

This is exactly what I was looking for! They are fairly strong magnets (strong enough to be pulled through my fingers) and very durable. I have 2 boys (ages 5 and 8) who are rough with their toys and have been thrown, dropped, hit hard against each other etc without chips or cracks. They also came in a great zip case so I can only give my boys a few at a time and don't have loose magnets around the house. Just so everyone knows they are too small for children under 3 or for those with health issues. a tendency to put things in their mouths (I know some people buy them because they fidget or for people with special needs). Otherwise this is a wonderful purchase and I would definitely recommend it. I will buy again!