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Continue to ChatN52 Neodymium magnet block : 4mm L x 4mm W x 2mm H https://suprememagnets.com/products/neodymium-magnet-4x4x2mm-block
N52 Neodymium magnet block : 4mm L x 4mm W x 2mm H https://suprememagnets.com/products/neodymium-magnet-4x4x2mm-block