Discontinued
The RVFM Magnetic Needle 75mm is from a range of magnetic needles with low friction bearing, ideal for the study of compasses and magnetic fields.
- Carbon-steel magnetic needles have brass cup pivot bearings
- Needles available in 50, 75 and 100mm lengths
- RVFM types P818 (stand), P816A, P816B and P816C (needles)
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