Strong magnetic stirrer oval type FMH-1640 40*20 F-4099-006 1 piece

They contain expensive Samarium Cobalt (Smco) magnets and are marked with an inert carbon mark (black) for easy identification. Not only is it stronger than conventional alnico magnets, but it also has less deterioration in magnetic force, so it can be used for a fairly long period of time. Diameter x total length: 20 x 40 mm Material: PTFE Code number: F-4099-006