Drilled Ball Set - Set of 12 Item number DBLST12. Regularly stocked item. Usually ships within 3 to 5 business days.
grades 8 to 12
ages 13 to 18
list price $120.09 our price $60.05 savings $60.05 (50%)
An economical set of 12 drilled balls for all your pendulum experiments. Set contains two each 25mm diameter balls of brass, aluminum, steel, wood, cork and copper; in a plastic box for easy storage. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.
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