14mm diameter x 5mm thick with a 2.5mm countersunk hole.
Each magnet has its north pole on the countersunk face.
Each magnet can support 0.135kg vertically from the magnetic face when in flush contact with a mild steel surface.
Resistant to demagnetisation without any extra coating.

Also known as ceramic magnets, ferrite magnets offer excellent value for money when pull strength is not the most important factor. They have a high resistance to corrosion and demagnetisation and can operate in temperatures up to 180 degrees Celsius. These magnets are countersunk on one side for fixing in place. Because these magnets are weakly magnetised they are not suitable for weight-bearing applications, but instead are commonly used in sensors and other similar applications.