Strong magnetic stirring bar cylinder type FMH-1140 40*8 F-4098-006 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: 8 x 40 mm Code number: F-4098-006