These thin and powerful Neodymium magnets combine a high level of magnetic power and the convenience of super strong 3M self adhesive with a peel away backing strip. They are sold as matched pairs(one north pole and one south pole) so they attract each other (unless otherwise stated).

Both have self adhesive on the reverse side. If the magnets are to be used for sticking to a steel surface, you can use either a North or South pole magnet as they are equal in strength.