A comprehensive physics set with 12 balls in all, includes 25mm diameter drilled balls of brass, aluminum, wood, steel, copper and lead; two 25mm solid steel balls, one plain and one with bifilar suspension lugs; 38 mm balls of brass, steel and lead with hooks; and one 25mm solid cork ball. Packed in a clear styrene storage box. Set of 12.
WARNING: CHOKING HAZARD - This product is a small ball. Not for children under 3 yrs.
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