Plastic switch for experiments.
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Made of steel, 12 x 5 mm in pairs ; half red & half blue (for N & S) spray painted, with keepers.
An annular magnet with face poles. Internal dia 12.5 mm, External dia 30 mm, thickness 6.5 mm
Size: 50 x 10 x 5 mm
Load Stone Magnet for Physics Lab – Magnetic Iron Ore. Selected pieces
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