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Pack of 10 spare Pith Balls for us in electroscope experiment (PH0894). Each pith ball ranges from 0.4" - 0.6" long and 0.4" - 0.5" diameter. Sizes of each specific ball may vary.
David Lamp
2025-01-10 13:59:48
I would have preferred that they were also available with a conductive surface coat (usually powder Al or Ag).
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