This is the cutest quartet in town!
These are rare earth magnets. That means the sheer force of their attraction is as strong as they are adorable! You don't have to stop at one piece of paper, or even two....we'd say you can go as high as....several!
With that said, these are really strong magnets and should be kept away from children, pets, electronics, and individuals with pace makers. They're about 20 times stronger than the ceramic magnets you can get at a craft store.
Each magnet is housed in a pink bottle cap and measures about an inch in diameter.