This multi-purpose set is ideal for pendulum experiments, but can be used to meet a variety of lab needs. The set includes 12 balls, each 25mm in diameter. There are two balls each of cork, wood, aluminum, steel, brass, and lead. Each ball is drilled with a 3mm-diameter hole. The set comes packed in a plastic box for convenient storage. Set of 12.
WARNING: CHOKING HAZARD - This product is a small ball. Not for children under 3 yrs.
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