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SBALL18
Polished, hardened spheres for mechanics and magnetism experiments.
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From $0.79 /unit
MSJL1145
5-digit mechanical counter with adjustable ratchet lever and spring arm.
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From $16 /unit
Fine Iron Filings, 8 Oz, 1/2 Pound, 227 grams
3D magnetic field experimentation with safe-keeping screw cap.
Mechanical Industrial Counter, 5 Digit
5-digit mechanical counter with adjustable ratchet lever and spring arm.
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