Compass 45mm Lock Needle, Lid.
This nice little liquid-filled compass is good for basic studies in magnetism and electricity. North pole, degree scale and cardinal compass points are marked. Housed in a 108 x 60 x 450 mm diameter case.
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This nice little liquid-filled compass is good for basic studies in magnetism and electricity. North pole, degree scale and cardinal compass points are marked. Housed in a 108 x 60 x 450 mm diameter case.
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