Y10 Ferrite Magnets For ArtsCraftsModel Making & Hobbies23.5mm O.d. X 18.5mm I.d. X 11.5mm Thick0.25Kg Pull from B&Q

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Also known as ceramic magnets, ferrite magnets offer excellent value for money when pull strength is not the most important factor. They have a high resistance to corrosion and demagnetisation, can operate in temperatures up to 180 degrees Celsius and are commonly using in conveyor systems, switches speakers and crafts.