but then you have a floating magnet

We always roll it with the most magnetic side inwards

You can only buy these magnets at magnetpartner

Spraypainted black

Pottemagnet m. indvendigt gevind, Ø16 mm. 3M but then you have aMagnet 16 mm. with internal thread (M4). Pot magnet made of neodymium with a steel pot. NOTE! Not made of stainless steel, which is why we recommend indoor use only. SPECIFICATIONS: Strength: approx. 5,200 g. Diameter: 16 mm. Height: 4. 5 mm. Magnetism: N38 Surface: nickel plated (Ni) Thread thickness: M4 Max. temperature: 80C The strength is measured in direct tension on a thick, magnetic steel plate. The more space there is between the magnet and