Posted by a reviewer on Amazon

First the magnets are shipped with a plastic insert between the pairs

Posted by a reviewer on Amazon

If you are not careful when you remove the insert the magnets will reattach

Posted by a reviewer on Amazon

The second question was whether the hooks could handle the force needed to separate the magnets

Posted by a reviewer on Amazon

You cant make up for a weak wall low metal content like a weak iron filing primer with a strong magnet

Posted by a reviewer on Amazon

One popped up and i can not get those two apart

Posted by a reviewer on Amazon

Don’t try to pull them apart it’s almost impossible slide the magnets apart

Posted by a reviewer on Amazon

If there is too much curve it will be difficult to place the object on the hook each time and if there isn’t enough curve the object can fall off

Posted by a reviewer on Amazon

Once i stick them in place they are very difficult to remove i have to slide them to the edge of the surface to remove them