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SiberK

"Clockwork" spinning top

by SiberK Apr 17, 2019
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How big are the ball bearings?

насколько большие шариковые подшипники?

Steel BBs .177 Caliber
Стальные шарики для пневматики калибра 4.5мм.
На самом деле диаметр шариков примерно 4.3мм.