Length 52mm x Width 25mm x Thickness 12.5mm.
Plastic Encased Ferrite Block.
Approx Pull Away Strength 2kg magnet to direct contact with 3mm thick flat surface of mild steel.
Polarity Identifiers: Red = South Pole Green = North Pole. Very strong! Use these magnets to determine north and south poles when working with other magnets or metals.
Also ideal for educational purposes as their durable plastic case makes them safe to handle.
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