2Pcs D16 16mm Ferrite Magnetic Hooks N52 Neodymium Hold 5.5kg Strong Magnet. - 16mm dia x 35.7mm thick N52 Neodymium Clamping Magnet with Hook from the back. - Grade: N52. - The Pot magnet base is 5.2mm tall from the magnetic face of the magnet to the top of it's threaded collar.
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