Rubber coated pot magnets or clamping magnets in our range provide an astonishing strong magnetic clamping force for any size. These Neodymium magnets are sunken in to a steel shell meaning that the north pole is on the centre of the magnetic face and the south pole is on the outer edge around it. The steel pot increases the adhesive force of the magnets giving them an incredible hold for their size. Because these magnets have a rubber coating ,they are ideal for using to attract fragile or easily marked surfaces, the rubber coating increases friction, softens impacts and prevents marking. An added advantage of these magnets is that they are resistant to chipping or cracking following constant impact with a steel surface.