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Pack of 10 Pith Balls spares/replacements
For use in electroscope experiment
Each pith ball ranges from 0.4" - 0.6" long and 0.4" - 0.5" diameter. Sizes of each specific ball may vary.

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.