Guy's Magnets 18 mm x 3 mm ferrite disk

Manufacturing tolerances: Diameter +/-0.36mm, Thickness +/-0.1mm Magnetised through the thickness so that one flat face is north and the other is south

Guy's Magnets 17.5 mm x 5 mm S2:17 shallow pot

These are specifically designed for press fitting into application and, as such, have no method of anchoring. +/-0.2mm manufacturing tolerances on the steel shell. Diameter of magnet: 14 mm +/-0.2mm Thickness of magnet: 4mm +/-0.5mm THIS IS NOT A TOY, choking hazard. Pull and hold calculations are approximate only are only for guidance.