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Perfect for pendulum experiments. It €™s a multi-purpose set ideal for pendulum experiments but can be used to meet a variety of lab needs. Set includes 6 balls each 25 mm in diameter.
Contains one ball each of wood, aluminium, steel, copper, brass and lead. Each ball is drilled with 3 mm diameter hole.
⚠ WARNING
Cancer and Reproductive Harm - www.p65warnings.ca.gov